Saturday, April 15, 2023 Today is the 105th day of 2023 and the 27th day of spring. TODAY’S HISTORY: In 1912, the RMS Titanic sank in the North Atlantic after hitting an iceberg. In 1923, insulin became available to the general public for the treatment of diabetes. In 2013, two bombs exploded near the finish line at the Boston Marathon, killing three people and injuring 264. In 2014, the…