1. In 1822, the Indiana State Legislature passed a law establishing the state's first public school system. This marked a significant milestone in Indiana's history, as it paved the way for the creation of a statewide system of education that would provide all Hoosiers with access to quality schooling.

2. On January 20, 1841, Indiana Governor Samuel Bigger was inaugurated. During his term in office, Bigger focused on improving the state's infrastructure, promoting economic development, and expanding access to education. He also oversaw the completion of the Wabash and Erie Canal, which helped to connect the state's agricultural and manufacturing centers.

3. In 1861, Indiana Governor Oliver Morton was inaugurated on January 20. Governor Morton played a pivotal role in the Union's war effort during the Civil War, mobilizing Indiana's resources to support the Union army and helping to drive Confederate forces out of the state. He was also instrumental in the passage of the 13th Amendment, which abolished slavery throughout the United States.

4. On January 20, 1919, Indiana ratified the 18th Amendment to the Constitution, which established Prohibition. This law prohibited the production, sale, and consumption of alcohol in the United States, and was intended to promote public health and morality. However, Prohibition was widely criticized for promoting organized crime and corruption, and was eventually repealed in 1933.

5. In 1985, President Ronald Reagan visited Indianapolis to deliver a speech at the Indiana State House. During his visit, President Reagan discussed his plans for economic revitalization and job creation, and praised Indiana's efforts to promote business and industrial growth. His visit was part of a broader effort to promote economic development in the Midwest and revitalize the region's struggling manufacturing sector.