1. Iowa Statehood: November 4, 1844, marks an important milestone for the state of Iowa as it became the 29th state in the Union, making it the first state to be created after the original thirteen colonies.

2. World Record Tornado: Iowa witnessed the deadliest and most powerful tornado in history on November 4, 2004. Dubbed as the "Hallam Tornado," it was an F4-rated twister that raged across a 50-mile span, claiming the lives of one person and injuring many more.

3. Birth of Herbert Hoover: Herbert Clark Hoover, the 31st President of the United States, was born on November 4, 1874, in West Branch, Iowa. He remains the only president hailing from Iowa and served from 1929 to 1933.

4. Women's Suffrage: On November 4, 1919, Iowa women achieved the right to vote as it became the tenth state to ratify the 19th Amendment to the US Constitution, which gave women the right to vote.

5. Iowa State Fair: November 4, 1854, marked the first-ever Iowa State Fair, held for two days in Fairfield. The fair has since become an annual event, which attracts more than a million visitors each year, making it one of the country's most significant state fairs.