Zimmerman Case app
Twitter is celebrating its seventh anniversary today. Check out seven lives changed by the popular microblogging site.
Popular microblogging site Twitter is celebrating its seventh anniversary on March 21.
Library of Congress
"Mary Had a Little Lamb" is first published, the Brooklyn Bridge opens, Major League Baseball gets lit up, Bob Dylan is born, and "Thelma & Louise" and "Braveheart" premiere in theaters, all on this day.