1. Indiana established as a state: January 17, 1816 marks an important day in Indiana history as it was the day when Indiana officially became the 19th state of the United States. The state's constitution was adopted in Corydon, and Jonathan Jennings was elected as its first governor.

2. First Indiana State Fair held: In 1852, the first Indiana State Fair was held in Indianapolis on January 17. It was a one-day event with 1,500 attendees and featured cattle judging and plowing contests. Today, the Indiana State Fair is a 17-day event held in August, showcasing agriculture, industry, and entertainment.

3. Colored Farmers' National Alliance and Cooperative Union formed: On January 17, 1891, African American farmers formed the Colored Farmers' National Alliance and Cooperative Union in Indianapolis. The organization sought to improve the economic and social conditions of black farmers and their families by encouraging cooperative economic practices.

4. Tom Brady wins AFC Championship in Indianapolis: On January 17, 2016, the New England Patriots and quarterback Tom Brady defeated the Indianapolis Colts 45-7 in the AFC Championship game held in Indianapolis. It was the sixth time the Patriots played in the Super Bowl with Brady as quarterback.

5. Indiana Pacers beat Miami Heat: On January 17, 2018, the Indiana Pacers beat the Miami Heat 106-103 in a thrilling NBA game. Victor Oladipo led the Pacers with 22 points and 10 assists, while Lance Stephenson added 16 points off the bench. It was a significant victory for the Pacers as they went on to secure a spot in the playoffs that season.