1. On April 10, 1841, the first building of the Pennsylvania Hospital for the Insane opened in Philadelphia. It was the first hospital of its kind in the country, dedicated solely to the treatment and care of those suffering from mental illness.

2. April 10, 1865, marked the day of the funeral procession for President Abraham Lincoln in Harrisburg, Pennsylvania. His body was transported by train from Washington, D.C., to Springfield, Illinois, and made several stops along the way, including Harrisburg.

3. The first game of baseball played under electric lights in Pennsylvania occurred on April 10, 1884, at Recreation Park in Philadelphia. The game was played between the Philadelphia Athletics and the Wilmington Quicksteps, with the Athletics winning 3-2.

4. April 10, 1912, was the date that the doomed Titanic began its journey from Southampton, England, bound for New York City. The ship sank five days later after colliding with an iceberg.

5. On April 10, 1971, the Pennsylvania Turnpike was extended westward for the first time, with the opening of a 58-mile stretch between the Ohio state line and New Castle, Pennsylvania. This expansion made the Pennsylvania Turnpike the longest toll road in the United States at the time.