1. The Old Post Office Building in Washington, D.C. was opened on December 2, 1899. The building was designed by Willoughby J. Edbrooke and served as the city's main post office until the 1980s. Today, it is home to the Trump International Hotel.

2. December 2, 1970, marks the day the Environmental Protection Agency (EPA) was established. The EPA was created under President Nixon's administration to consolidate a number of federal environmental programs into one agency.

3. Washington D.C.'s iconic Kennedy Center for the Performing Arts opened on December 2, 1971. The center is named after President John F. Kennedy and is one of the busiest performing arts centers in the world.

4. Sally Jewell became the 51st Secretary of the Interior on December 2, 2013. She was the first woman to hold the position and served under President Obama until the end of his term.

5. On December 2, 1993, President Bill Clinton signed the North American Free Trade Agreement (NAFTA) into law. The agreement aimed to reduce trade barriers between the United States, Canada, and Mexico and has been a source of controversy ever since.