April 10, 2019 04:47 Updated Follow There are many theories about this. Read "What is a Hoosier?" for an overview of the theories that had been put forth by the mid-1980s. A revised list that incorporates more recent scholarship on the topic is in the works. Related articles What is a Hoosier? Who is George Rogers Clark? Where can I buy Indiana postcards and souvenirs? When can I apply for a lifetime handgun license if I already have a valid handgun license of another type? What is emergency custody?