* Neanderthals. Intelligent tool using hominids, capable of taking down big prey. Most intelligent animal by far in its home range. The only primate species to survive in ice age Europe for millions of years. Went extinct when [[HoistByHisOwnPetard an even more intelligent species of hominid with better tools, also capable of taking down the same prey]], migrated into their home range. That other intelligent hominid species? Modern Humans.
** The intelligence of Neanderthals is the source of a lot of discussion. The level of toolmaking of both species was at roughly the same level, but it seems Neanderthals never made any kind of art or jewelry, at least not one that could have survived. There's some evidence of Neanderthals and humans living side-by-side for quite a while and possibly even forming joint societies. Why exactly Neanderthals went extinct is also not completely certain, some theories suggest humans were better at procreation, other say we were better at the adapting to changing environments. And there is also the possibility that we simply got lucky.
* Artistic movements. Numerous ones like impressionism, surrealism, dada and postmodernism. While they were very modern (or even postmodern) and [[TheNewRockAndRoll controversial]] when they were introduced, the fact that they've been around for ages means that it's often hard to understand why the movements were so important.
** Greek paintings and sculpture. Most of it looks a bit primitive and even uncharacteristically unrealistic today, but without it literally all of western art the way we know it wouldn't exist. (maybe aside from a period of truly Germanic art at TheLowMiddleAges )
* The infamous "chicken joke" would be a brilliant subversion of the concept of a punch line, if only it weren't [[{{Spoiler}} one of the first jokes most people heard]]. Some people miss the point so completely that they try to make it a ''real'' joke--claiming, for instance, that "the other side" is [[http://chugworth.com/archive/?strip_id=132 double entendre for death]]. (Link NSFW.)
* High-end computer technology in general. What's cutting edge can become mainstream and even low end very quickly by [[FollowTheLeader other companies doing it a lot cheaper]]. Just ask SGI or Cray.
* Creator/RobinWilliams and his mastery of RapidFireComedy and physical and verbal humor were once new and exciting, like having Groucho and Harpo Marx in the same person. (''Series/MorkAndMindy'' never would have survived without it.) Thirty years later, this same style of comedy has become a punchline in and of itself, most notably in a SNL Celebrity Jeopardy! sketch where "he" is told, "For the love of God, SHUT YOUR MOUTH!".
* Stand-up comics. Most original and groundbreaking ones seem less so a generation later--or less--when their styles and gimmicks are widely reproduced. It can be difficult to understand what makes, e.g., Creator/LennyBruce or Creator/RichardPryor so important when stages are saturated with comedians who do approximately the same thing, many of them at least as well.
** In Britain, comedians like Creator/BillyConnolly and Creator/JasperCarrott were radically different from the traditional working men's club comedians in the 1970s who stood at a mike with a beer in hand and told jokes. Now their observational comedy and conversational style is the norm. Not that they're unfunny now, but they can seem like very conventional establishment figures when once they were radical.
*** One interesting thing of note about the working men's club comedians is that they themselves were a victim of this trope at the time. Beforehand, British stand-up was very ''stiff upper lip,'' with a guy in an evening suit standing motionless on a stage with very little charisma. As controversial as the racist/sexist acts of men like Bernard Manning would eventually become, they really were the benchmarks that every up and coming comedian tried to copy.
** Similarly, the work of many of the comedians of the "alternative comedy" set of the 1980s now often looks as quaint as the earlier comics they were reacting against, when viewed in context of later work.
** Surrealism, non-sequiturs, and a rambling rhetorical style are so widespread among stand-up comics of the late 1990s / early 2000s that it's easy to overlook how influential EddieIzzard was when he first coined that style. And even he simply imitated what certain American stand up comedians and Creator/MontyPython did decades earlier.
** Jerry Seinfeld again. His observational stand-up routine was insanely popular in the late 1970s and early 1980s, and it was widely recognized as fresh and original. JohnnyCarson famously gave him the "OK" sign, when Seinfeld first appeared on ''TheTonightShow''. Fast forward a few years and Seinfeld had become the go-to impression of a lazy hack comedian, due to being copied to death by lesser comedians. As early as 1985, a recurring sketch on ''SaturdayNightLive'' featured a group of these, dressed alike and beginning and ending nearly every sentence with "What is the deal with..." and "I wanna know!"
*** Seinfeld was also the first person to joke about airline peanuts, now pretty much synonymous with "lazy comedian".
* UsefulNotes/{{Unix}} seems to fall victim to this trope. Multitasking and on-line documentation are now standard, and the command-line interface is admittedly difficult. But clunky as it was, a person using a computer interactively was a major breakthrough in the early to mid-'70s when the computer world was still based on batch processing. The command line was actually considered user-friendly, believe it or not.
** Linux was considered revolutionary because it was a free full UNIX system that could run on a single off-the-shelf PC. Other free UNIX-like [=OSes=] have since been ported to the platform. Even then, Linux wasn't even the first version of UNIX that could run on a PC.
* Computer programming languages can be like this. Older languages tend to have fewer built-in tools, forcing one to manually program a lot of things that newer languages take care of automatically. This causes many of today's younger programmers to write off these older languages as needlessly complicated to code in, without realizing how, for instance, C (introduced in ''[[OlderThanTheNES 1972]]'') was immensely more user-friendly than the programming tools that had come before (such as machine code and assembly language).
* {{USENET}}. In a world where any schmuck with an Internet connection can start a blog or a message board, this has gone from "groundbreaking innovator" to "place where only spammers frequent" very quickly.
* The [[http://en.wikipedia.org/wiki/Gopher_%28protocol%29 Gopher protocol]], which organized content on the Internet into a browseable (by a text menu interface) hierarchy of sites, files and folders, complete with a search engine has been all but lost to current generations of Web users as the direct predecessor ''of'' the Web. However, a decent-sized gopher space does still exist on the 'net to this day.
* People these days, with handheld computing devices such as smartphones, electronic book readers, tablet computers, etc. probably don't remember the [[http://en.wikipedia.org/wiki/MessagePad Newton MessagePad]], the grandfather, so to speak, of many of these, and direct ancestor of the iPad. Quite a few of them very likely would think of them as unwieldy or clunky, but when they were introduced in 1994, they were far ahead of their time.
** They were ''too'' far ahead of the time, which is why they were unwieldy and clunky (even by 1994 standards). When Palm came along and did the same thing, with much less ambition, they were unbelievably successful.
* Technologies in general. Remember how a bunch of gigabytes were supposed to take up an area the size of a floor tile? Yeah... take one look at modern ''terabyte'' storage devices and hard drives and try not to laugh at those prospectives.
** Computers were marketed based on their speed. It was the quest for 100, then 200, then 300 megahertz. By [[TheNineties late 90's]] half a gigahertz and then one gigahertz finally arrived to a universal meh. Now only do it yourselfers and PC enthusiasts focus on speed or process specs.
** Similarly, science. Theories that were once revolutionary are now things that are taught to anyone with a basic education, and many people who were geniuses of their era and had what was the best and strongest theory at the time now seem to believe things that are ridiculous. Even though we remember Galileo, Newton and Aristotle, it's strange to most people to think how revolutionary their ideas and experiments (thought experiments or otherwise) were and how far ahead of their time they were. There are doubtlessly an even larger number of scientists, mathematicians and philosophers who have been outright forgotten by history because their work is now obsolete or factually wrong, or just became common knowledge and now exists in the work of later people who improved upon their original works.
* In less than a decade, we went from cell-phone commercials advertising the ability to send photos or text messages as if it was magic, because it really was an innovative thing, to a time where the idea of owning a cell-phone that ''can't'' do those things is unthinkable.
** Really, cell phones in general. From their size (they used to be the size of a brick and just as heavy) tho their service (they used to only work in high-traffic areas, and would be useless in the suburbs, for example) to just how many people had them. There was a time when, even after they got smaller, had wider service areas and lower rates, when well over 50% of the adults in the western world still didn't own one, and the idea of teenagers having their own was about as likely as aliens landing. A majority of households still had a landline home phone line, and wouldn't think of getting rid of it because ''that'' was their primary phone while their cells were (supposedly) strictly for emergencies. In the modern era, most households have one cell phone per person, many don't have landline phones at all, and when they do, they barely use them.
*** Strangely enough, while being uglier, costing more to own and operate, and being able to do much less, the cell phones of yesteryear had battery power that could last for nearly a week, even when used heavily. Modern smart phones die in mere hours even if with light use. The modern battery life is largely due to the 'feature war' between smartphone manufacturers, to have the brightest screen, the fastest Internet, the slimmest battery etc.
* If you're too used to DVD and Blu-ray, watching a movie on a VHS tape seems... weird. The quality might seem grainy, the sound is lower quality, etc., and there's all sorts of damage that could have been done. Plus, having to fast forward if you wanted to see a certain scene... and knowing they weren't that accurate, as most VCR systems would play about a second of silence and then pick up when you fast-forwarded or rewound.
** And in this day and age, the fact that theatres or rare TV showings were the only way to see old movies seems kinda silly. In 2011, people ''scoffed'' at the idea of ''Disney/TheLionKing'' being re-released in theatres... whereas just fifteen years previous, the practice wouldn't have been that ludicrous.
*** Pre-VCR, it was common practice to re-release movies to theaters just before a sequel came out. Creator/{{Disney}} themselves would re-release their more popular animated films [[FleetingDemographicRule every seven years]].
** For those who were around when VHS was the dominant medium, this trope is somewhat mitigated by the fact that VHS was always noticably poorer quality than broadcast TV; and let's be fair, there was a ''reason'' why Laserdisc was the (albeit niche) choice for serious cinephiles in the pre-DVD days...
** It's also somewhat exaggerated by the larger size of most modern-day TV screens by comparison to what was normal in the '80s and'90s; the actual resolving power of the eye at normal viewing distance means that for smaller screens, higher resolutions are not normally as noticed.
* Similarly, whilst now-normal HD pictures looked amazing a few years ago, they now look much less impressive when compared to watching in 4K...
* The grocery store chain [[http://en.wikipedia.org/wiki/Piggly_Wiggly Piggly Wiggly ]] is the 'trope maker' of the modern self serve grocery store, but most people likely have forgotten that. (Even fewer people remember that it was one of the first businesses to use the [[http://en.wikipedia.org/wiki/Just-in-time_%28business%29 "just-in-time" model of production]], and even one of the first to use the shopping cart, but that's because to most people, a grocery store is simply a place where you can buy food.)
* UsefulNotes/McDonalds consistently ranks at or near the bottom in rankings of fast food franchises despite being the one that first codified the business model of a fast food joint, partially because it can't stand out in the status quo it created. That said, they are still #1 in profits by a decent margin, probably out of how utterly ubiquitous they are.
** That, and the fact that even people who routinely trash it still eat there at least once a month.
* Similarly, Howard Johnson's and Holiday Inn were two of the first chains to really standardize the concept of a hotel chain as we know it today. Things such as on-site swimming pools, meeting rooms, and on-site restaurants that most motel patrons take for granted became the ''norm'' with Ho Jo, but ExecutiveMeddling in the 70s and 80s, combined with a saturation of the market, pushed that chain into near-irrelevance. (Holiday Inn, however, managed to revitalize itself in TheNineties.) Between the saturation of the market and the rampant rebranding present in the motel industry, many facets of the modern hotel that most people don't think twice about were seen as new, convenient, and groundbreaking when they first came out in the 60's or so. A traveler back in the 50's probably would've been blown away by the concept of a motel offering a continental breakfast, for instance.
* The Toyota Prius, the first [[TropeCodifier commercially successful]] hybrid car, almost single handedly launched the Hybrid car revolution... and is now quickly becoming a victim of its own success, as the explosion of hybrid cars it helped launch has given rise to bigger, faster, and even more fuel efficient hybrid cars, with even other cars from Toyota like the Camry Hybrid stealing its thunder, and leaving the Prius with less of an edge, and less to recommend it.
* Boeing Model 247, the first modern commercial airliner that first flew in 1933. Unfortunately, it was promptly joined by competitors using basically same technology but were just slightly better--most notably, the Douglass DC-3--that hardly anyone knew about the Boeing plane even in 1930s.
* Memes in general. What was considered funny and viral back then can quickly become a DiscreditedMeme when beaten to the ground. For example, the "I was an adventurer like you, then I took an arrow to the knee" meme from Skyrim quickly fell out of grace weeks after the meme was born. With enough fervor, memes can become overused, tired, parodied, and hated within ''days''.
* In a similar vein, anything used in a WebAnimation/YouTubePoop. Earlier poops, especially those based on VideoGame/TheLegendOfZeldaCDIGames or ''VideoGame/HotelMario'', can be seen as crude or uncreative due to so many poopers (amateur and "famous" alike) using those sources early in the medium's history. Also, most poopers these days have become more advanced at techniques such as sentence mixing, pitch-shifting, what have you, that randomly splicing in a "[[{{Mondegreen}} Gay Luigi]]" no longer has the same impact that it did in 2008.
* Jean Robert-Houdin was a french magician in the 1850's who invented the cliched Victorian magician idea. At the time magicians were seen as beggars, thieves, or children's entertainers, seeing one dressed like the finest of gentlemen, on a stage, performing for high society, was revolutionary at the time, so much so it's still most people's go to image of a magician 150 years later.
** David Blaine also fits this trope. At the time, Blaine's minimalist presentations of simple tricks with ordinary objects for unsuspecting people on the street was unheard of. A decade later it's a cliche used by almost every average teen magician as a substitute for actual presentation.
* How many people today know that whenever a fictional character delivers some kind of lecture or speech, and at one point exclaims, "You like me! You ''really'' like me!", is in reference to an infamous, and almost career-killing acceptance speech Sally Field once gave at the Oscars?
* Bureaucracy is hated by almost everyone nowadays, but when it was first invented it was a revolution in fairness compared to the arbitrary rulings of family-run businesses that it superseded.
** The same is true for the saying "An eye for an eye" and its many variations. Before it, justice didn't exist so much as arbitrary punishments and in nearly all cases, someone of noble standing would get off with much easier punishment, if any. Being punished the same way the crime was done and societital standing being irrelevant was completely revolutionary. Nowadays people only see the aspect of "So if my daughter gets killed by a person, in return ''their daughter'' should die?"
* Jokes based around current events tend to get this reaction after awhile. For instance, seeing jokes about Michael Jackson being a pedophile are hard to laugh at now that he's dead.
* VideoGames Strategy Guides. Rather [[CrackIsCheaper infamous for their price]], they got phased out by the internet boom when gamers started writing their own guides and uploading them to websites like GameFAQs for free.
* ''Pinball/TheAddamsFamily'' pinball machine was absolutely ''groundbreaking'' in its day, and nearly every pinball machine released after it would follow in its footsteps. It popularized goal-based gameplay (complete objectives to reach the WizardMode; before, pinball machines just had you continue playing until things were unlocked), use of magnets on the playfield, modes that could stack, and easy multiballs (prior, multiballs were made very difficult to reach and was itself an end goal). In other words, ''The Addams Family'' was the first pinball machine to have rules that intricate. Compared to the machines with more refined rules, better CompetitiveBalance, and more complex playfields that would be released later, it would be hard for a modern curious player to understand why ''The Addams Family'' sold so well when it looks like any other pinball machine, only rougher around the edges in gameplay and with less impressive music.
* ThePrince by Machiavaelli. While it has a cold-hearted reputation, it is actually a guide on how best to govern with reason and make pragmatic decsions. While shocking in the Renaissance, the modern reader will consider most of to be sensible advice and not get [[ValuesDissonance what all the fuss was about]].
* Education and degrees. In the 20th century, just having a high school degree opened up a lot of doors for you. In the mid to late 20th century, having a college degree in the right field was practically a golden ticket to employment and job security. Fast forward to the 21st century, and holders of college, university, and even graduate degrees have become a dime a dozen and are finding it harder to get their foot in the door than their parents and grandparents did with the same qualifications.
** This tragically applies to all fields, not just soft sciences. At first, one could be the snarky HardOnSoftScience specialist and study STEM fields for a guaranteed job in the field. Nowadays, it varies. While Doctors and Scientists are still always welcome, Engineers and Technologists don't quite have the same luck or at least, not without competition for the few jobs needed in the field within the same area. Turns out that when 1500+ graduates in tech fields go after about 50+ jobs in their local city, there's going to be a bloated market for areas that just don't need as much. Tech majors have to get especially lucky and hope that whatever particular field they studied in (programming, databasing, security, et al.) is going to find a job in their hometowns or else its relocation if they can even afford that!
* The ancient Romans connected their empire through a system of roads. It's been centuries since anybody found ''that'' to be new.
* The establishment of the democracy and the republic was not a new thing in the late 18th century, as it had existed in Ancient Greece and Rome, yet at the time the United States of America stood out as a nation led by elected officials in a world of seemingly self-centered monarchies. Nowadays most of those monarchies are themselves republics.
* The Soviet Union proved to be the first nation to embrace communism. After UsefulNotes/WorldWarTwo communist nations spread all over the globe, making the USSR a relatively large cliché.
* UsefulNotes/TheAmericanCivilWar is commonly seen as the first modern war, introducing deadlier weapons such as the Gatling gun, better transportation through the use of railroads, and the ability to observe battles in midair. Greater technology developed by UsefulNotes/WorldWarOne, but these came from a conflict that cost more than 600,000 lives.
* Modern day nutrition, medicine, conditioning, and materials technology has radically changed the performance of athletes today in all professional sports. As a result, when one looks back at past greats, their achievements may not look as impressive in a modern context. Kurt Browning was the first figure skater to land a quad jump in official competition, in 1988. Nowadays, quad jumps are considered a standard part of any male figure skater's program. John Elway, hall of fame quarterback and back-to-back Super Bowl champion, is considered one of the greatest quarterbacks ever, yet his stats would appear quite pedestrian by today's standards (his career passer rating would have made him the 28th best quarterback in 2014, out of 33 qualifiers). Anyone who watches a player from decades past and declares that he "wasn't even that good" needs to be reminded of this trope.
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