After doing a simple google search, I learned that Abraham Lincoln ended his law career in 1843. Then I googled "what happened in 1843" and this came up from Wikipedia: April–June. April 30–May 16 – Naval Battle of Campeche: Naval Battle between the Mexican Navy versus the Texas Navy and the Yucatán Navy. The battle features the most advanced warships of its day. May 7 – Nakahama Manjirō lands in New Bedford, Massachusetts, the first known Japanese in the United States."
The Invasion of Poland Sparked World War 2. After the news of the invasion reached England Winstin Churchhill declared war on Germany. After that England needed help so America joined to help.
