Today in HistoryToday is Thursday, April 8, the 98th day of 2021. There are 267 days left in the year.Today’s Highlight in History:On April 8, 1864, the United States Senate passed, 38-6, the 13th Amendment to the U.S. Constitution abolishing slavery. (The House of Representatives passed it in January 1865; the amendment was ratified and adopted in December 1865.)On this date:In 1513, explorer Juan Ponce de Leon and his expedition began exploring the Florida coastline.In 1820, the Venus d...