On this date in 1933 the city of Chicago hosted the first-ever Major League Baseball all-star game. And in 1942, Anne Frank and her family went into hiding.

On this date in 1938 Franklin Roosevelt dedicated the Eternal Light Peace Memorial. And in 1985, one of the most popular films hit the theatres.

On this date in 1932 Franklin D. Roosevelt gave an acceptance speech -- a first at a Democratic convention. And in 1937, Amelia Earhart went missing while attempting a new record.

On this date in 1908 an explosion in Siberia was one of the most incredible ever. And in 1953, one of the most iconic sports cars in history first rolled off the assembly line.

On this date in 1891 the US National Forest was first organized. And in 1995, Americans and Russians made history together.

After almost 24 years on the air at WKSU and more than four decades in radio, Mark Pennell is retiring. On the day of his last shift here, we wanted to take a moment to look back at that time in radio and some of the history he’s witnessed during that time.

On this date in 1948 the United States and British pilots teamed up to deliver supplies. And in 1963, President John F. Kennedy gave a famous speech in Berlin.

On this date in 1929 President Herbert Hoover authorized the Boulder Canyon Project Act.

On this date in 1947 a private pilot reported shiny objects darting by. And speaking of UFOs in 1997, the U.S. Air Force officially dismissed claims of an alien spacecraft crash in Roswell, New Mexico.

On this date in 1926 the first SAT was given to individuals. And in 1938, the world's first aquarium opened its doors to the public in Florida.