1. In 1993, a bomb exploded at the World Trade Center in New York City, killing six people and injuring more than 1,000 others. The plot was planned and executed by a group of terrorists, including Ramzi Yousef, who was later captured and sentenced to life in prison.

2. In 1980, Mount St. Helens, a volcano located in southern Washington, erupted, causing widespread devastation in the surrounding area. The eruption was one of the most destructive in U.S. history, killing 57 people and causing billions of dollars in damage.

3. In 1952, the Seattle Symphony Orchestra made its debut at Carnegie Hall in New York City, receiving critical acclaim for its performance of works by Mozart, Beethoven, and Wagner.

4. In 1863, President Abraham Lincoln signed the National Banking Act, which established a system of national banks and standardized currency throughout the United States. The act was intended to create a more stable and uniform financial system and was a major step in the modernization of the American economy.

5. In 1848, the United States and Mexico signed the Treaty of Guadalupe Hidalgo, officially ending the Mexican-American War and ceding a vast amount of territory to the United States, including California, Nevada, Utah, Arizona, New Mexico, and parts of Colorado, Wyoming, Kansas, and Oklahoma. The treaty also recognized the Rio Grande as the border between the two countries, and the United States agreed to pay Mexico $15 million in exchange for the territory.