1. First Leap Year: Wisconsin joined the rest of the world in celebrating the first Leap Year in 1804. A Leap Year occurs every four years, adding an extra day to February to bring the calendar year in sync with Earth's rotation.

2. Presidential Visit: On February 29, 1860, President James Buchanan visited Milwaukee while on a tour of the Midwest. He was greeted by a crowd of over 30,000 people who lined the streets to catch a glimpse of the President.

3. Leap Day Proposals: Leap Day, or February 29, is sometimes associated with a tradition that empowers women to propose marriage to men. Although the custom has diminished over time, the leap day proposal is still popular in some parts of Wisconsin.

4. Wisconsin's Official Flag: February 29, 1913, was an important day for Wisconsin as it became the first state in the US to adopt an official flag. The Wisconsin state flag is adorned with the state's coat of arms, which features several symbols representing the state's heritage.

5. Leap Day Blizzard: On February 29, 2012, Wisconsin was hit by a blizzard that caused widespread disruptions and power outages across the state. The storm dumped up to 22 inches of snow in some areas, bringing travel to a standstill and causing several schools and businesses to close.