History Trivia - Second Battle of Philippi – Mark Antony and Octavian decisively defeat Brutus' army

October 23

42 BC Roman Republican civil wars: Second Battle of Philippi – Mark Antony and Octavian decisively defeated Brutus' army. Brutus committed suicide.  

1641 Rebellion in Ireland: Catholics, under Phelim O'Neil, rose against the Protestants and massacred men, women and children to the number of 40,000 (also reported at 100,000).

1642 Royalist forces defeated the Parliamentarians at Edgehill, the first major battle of the English Civil War.