Monday, the Dow was up 11.06 points (0.04%) at 26,554.39, the NASDAQ increased 15.46 points (0.19%) to 8,161.85, and the S&P 500 closed 3.15 points (0.11%) higher at 2,943.03. The Russell 2000 gained 6.54 points (0.41%) to finish at 1,598.36, and the Wilshire 5000 climbed 44.44 points (0.15%) to 30,415.56.

ON THIS DATE: In 1789, George Washington took office as first elected U.S. president. In 1803, the U.S. purchased the Louisiana Territory from France for $15 million. In 1812, Louisiana was admitted as the 18th U.S. state. In 1900, Hawaii was organized as an official U.S. territory. In 1939, Lou Gehrig played his last game with the New York Yankees. In 1947, the name of Boulder Dam in Nevada, was changed back to Hoover Dam. In 1952, Mr. Potato Head became the first toy to be advertised on network television. In 1993, CERN put the World Wide Web software in the public domain. In 2012, One World Trade Center became the tallest structure in New York when it surpassed the height of the Empire State Building. In 2015, NASA’s Messenger spacecraft crashed into the surface of Mercury. The space probe sent back more than 270,000 pictures to earth.