On this day, April 23 ...

2005: The recently created video-sharing website YouTube uploads its first clip, "Me at the Zoo," which shows YouTube co-founder Jawed Karim standing in front of an elephant enclosure at the San Diego Zoo.

Also on this day:

1616: William Shakespeare dies in Stratford-upon-Avon.

1789: President-elect George Washington and his wife, Martha, move into the first executive mansion, the Franklin House, in New York.

President-elect George Washington and his wife, Martha, move into the first executive mansion, the Franklin House, in New York. 1898: Spain declares war on the United States, which would respond in kind two days later.

Spain declares war on the United States, which would respond in kind two days later. 1943: U.S. Navy Lt. John F. Kennedy assumes command of PT-109, a motor torpedo boat, in the Solomon Islands during World War II.

U.S. Navy Lt. John F. Kennedy assumes command of PT-109, a motor torpedo boat, in the Solomon Islands during World War II. 1968: Student protesters begin occupying buildings on the campus of Columbia University in New York; police would shut down the protests a week later.

Student protesters begin occupying buildings on the campus of Columbia University in New York; police would shut down the protests a week later. 1968: The Methodist Church and the Evangelical United Brethren Church merge to form the United Methodist Church.