1. On January 23, 1829, the Indianapolis Journal was first published. It was one of the first newspapers in Indiana and played a key role in shaping public opinion and reporting on important events in the state's history.

2. The Indiana State Capitol, located in Indianapolis, was dedicated on January 23, 1888. The building, designed in the Renaissance Revival style, has served as the seat of government for Indiana ever since.

3. On January 23, 1920, Indiana became the second state to ratify the 19th Amendment, which granted women the right to vote. The amendment was officially adopted later that year, and marked a major milestone in the fight for gender equality in the United States.

4. On January 23, 1965, the Indiana Pacers played their first game in the American Basketball Association (ABA). The team went on to become one of the most successful franchises in the ABA, winning three championships before eventually joining the NBA in 1976.

5. January 23, 1997, marked the opening of the Indiana Convention Center in downtown Indianapolis. The facility has since hosted numerous conventions, trade shows, and other large-scale events, contributing to the city's reputation as a premier destination for business and tourism.