Today is Tuesday, June 19, the 171st day of 2012. There are 195 days left in the year.

240 B.C. ― Eratosthenes estimates circumference of Earth

1846 ― First baseball game (Cartwright Rules); N.Y. Nines 23, Knickerbockers 1

1862 ― Slavery outlawed in U.S. territories

1889 ― Start of Sherlock Holmes adventure ``The Man with the Twisted Lip"

1910 ― Father's Day celebrated for first time (Spokane, Wash.)

1917 ― After WW I, King George V ordered members of British royal family to dispense with German titles and surnames, they take the name Windsor

1931 ― First photoelectric cell installed commercially West Haven,Conn.

1967 ― Muhammad Ali is convicted for reusing induction in U.S. Army

1968 ― 50,000 participate in Solidarity Day March of Poor People's Campaign

1976 ― U.S. Viking 1 goes into Martian orbit after 10-month flight from Earth