1860: Florence Mabel Kling DeWolfe Harding, First Lady during the Warren Harding administration (1921-23). An outspoken supporter of woman suffrage, Mrs. Harding cast her ballot in the presidential campaign of 1920 for her husband. She was the first American First Lady afforded that right, as the Nineteenth Amendment had been ratified the previous summer. (Source: Library of Congress)

1790: John Carroll became the first bishop of the Roman Catholic Church in the United States. The son of a wealthy Catholic merchant, Carroll was born in Upper Marlboro, Maryland, in 1736 and had significant Revolutionary connections. His cousin, Charles Carroll, was one of the signers of the Declaration of Independence; his brother, Daniel Carroll, signed the Articles of Confederation and the United States Constitution. (Source: Library of Congress)