Facebook was originally launched on October 28, 2003 as FaceMash. The site was later shut down in 2004.
February 4, 2004
On February 4, 2004, FaceMash was replaced by a new social website known as Thefacebook (stylized as [thefacebook]). Co-creator Mark Zuckerberg made the logo blue because he is color-blind.
Klavika Bold (modified)
August 23, 2005
Thefacebook was renamed under its current name on August 23, 2005, with a logo set in the Klavika font. This logo is still used on the loading page, some ads and some subscriptions.
In-house Eric Olson
July 1, 2015
A slightly different logo with a newer typeface was introduced on July 1, 2015. Despite a new logo for mobile apps being unveiled in 2019, this one was still used on the main website until May 31, 2020.
On April 30, 2019, Facebook modified the 2015 logo and revealed a new icon. The logo was inverted, removing the background, and the typeface is now in a brighter shade of blue. When it debuted, it was only seen on mobile apps beginning in September 2019, but it started to be used on the main website on June 1, 2020.