Today in the history of the American comic strip: October 6

American cartoonists and writers may not have invented the comic strip, but some argue that the comics, as we know them today, are an American creation. Clearly, the United States has played an outsize role in the development of this underappreciated art form.

10.6.1929: Launched in 1922 as a daily strip, Fritzi Ritz expands to include a Sunday feature as well. The comic later evolved into Nancy, after Fritzi's niece assumed center stage. 

10.6.2009: The Library of American Comics releases Bloom County: The Complete Library, Vol. 1: 1980-1982, the first of five volumes reprinting the entire run of Berkeley Breathed’s strip.
 

Fritzi Ritz

Most of the information listed here from one day to the next comes from two online sites -- Wikipedia, and Don Markstein's Toonopedia -- as well as 100 Years of American Newspaper Comics, edited by Maurice Horn. Note that my focus is on American newspaper comic strips (and the occasional foreign strip that gained popularity in the United States). Thus, comic books and exclusively online comics are not included here.