[quote=@LeeRoy]
[@ImportantNobody]
[url=https://www.tofugu.com/japan/ancient-japanese-weapons/]Here you go. Research is key, my friend.[/url]

Edit:
[url=https://en.wikipedia.org/wiki/Japanese_sword]A list of SWORDS instead of just other weapons.[/url]
[/quote]

I suppose it depends on point of view, but practically any sword on the list could just be viewed as a katana, just like if you add on an extra two inches to an arming sword or change the hilt slightly, some people can claim it's an entirely new types of sword while others would just say, "no dude, that's an arming sword." It could also be that google images/wikipedia are just posting picture of katana instead of the other japanese swords because they don't know the difference, or they just feel and look more different once you get your hands on one. Some of the chokuto likely wouldn't be mistaken for a katana while other pictures claiming to be chokuto looks just like a straight version of a katana (which I can see why someone would say it's a different sword even if just a straight version being the only difference, but from my point of view it would be kind of nitpicking). Could be the more modern ones are just borrowing too much from the katana look while still claiming to be the different sword that indeed looked more different in the more ancient past. Well, the ancient swords were made vastly differently as well.