March 8th is the sixty-seventh day (sixty-eighth in leap years) in the Gregorian calendar; it marks the anniversary of the discovery of the third law of planetary motion by Johannes Kepler and the founding of the New York Stock Exchange. Famous March 8th birthdays include Freddie Prince, Jr., James Van Der Beek, Kat Von D, and Benny Blanco. March 8th also marks International Women’s Day, National Day of Unplugging, and National Proofreading Day.