Today is Monday, April 16, the 106th day of 2018. There are 259 days left in the year.
1509 — French army under Louis XII enters Alps
1521 — Martin Luther arrives at Diet of Worms
1632 — Albrecht von Wallenstein appointed supreme commander
1705 — Queen Anne of England knights Isaac Newton at Trinity College
1724 — First Easter observed
1818 — Senate ratifies Rush-Bagot amendment (unarmed U.S.-Canada border)
1849 — The opera "Il Profeta" premieres (Paris France)
1912 — Pittsburgh Pirates turn a rare 5-3-7 doubleplay (left fielder covers 2nd base)
1917 — Lenin returns to Russia to start Bolshevik Revolution