Timeline of all the web browsers https://upload.wikimedia.org/wikipedia/commons/7/74/Timeline_of_web_browsers.svg
Links, Lynx, w3m, firefox, konqueror, are the only remaining original browser implementations. If you use chrome or safari you have KDE project to thank for it.
@peregrine What about Dillo & NetSurf?
Also I'm implementing my own called "Rhapsode"...
For people who care about, support, or build Free, Libre, and Open Source Software (FLOSS).