Well, what is to say abouts word most popular font? Some say it's flavourless, even, if the uppercase R ist clearly trying to confince you from the oppesite.

There are two major revisions of Helvetica called "Helvetica Neue" (1938) and "Helvetica Now" (2019). Helvetica was first released under the name "Neue Haas Grotesk", wich was also used for a 2010 re-release.