1. George Washington Laid the Cornerstone for the U.S. Capitol
On October 3, 1793, George Washington laid the cornerstone for the U.S. Capitol building. This event marked the beginning of the construction for what would become the most recognized and important building in the United States. It was designed by architect William Thornton and was completed in 1800.

2. The Washington Monument Opened to the Public
On October 3, 1888, the Washington Monument opened to the public. Construction for the monument began in 1848 and was completed in 1884. It is the tallest stone structure in the world coming in at 555 feet tall.

3. The Washington Nationals Wild Card Win in 2019
On October 3, 2019, the Washington Nationals won their first playoff game in their Wild Card match against the Milwaukee Brewers in the National League Division Series. This was a historic win as the Nationals went on to win their first World Series title that year.

4. The C&O Canal officially Opened in 1828
On October 3, 1828, the C&O Canal officially opened. The canal was built to provide transportation for goods and people between Washington, D.C. and Cumberland, Maryland. The canal was operational for 74 years and is now a National Historic Park.

5. The Treaty of Greenville was signed in 1795
On October 3, 1795, the Treaty of Greenville was signed. The treaty ended the Northwest Indian War and allowed for U.S. settlement in the Ohio Territory. The treaty was signed between the United States and several Indian tribes, including the Wyandots, Delawares, and Shawnees.