Book excerpt: A Timeline of Indiana History - 1795 – 1800 covers the years between the signing of the Greenville Treaty. This treaty with the Native Americans defined the line beyond which pioneer settlement could not take place. Indiana Frontier Expanded During these years as the frontier in Indiana expanded, the population grew until the first steps toward statehood took place. Congress created the Indiana Territory, separating it from the Northwest Territory. northwest territory, greenville, treaty, line, indiana territory, frontier