Final answer:
The Land Run of 1889 caused significant change for Oklahoma, leading to the rapid colonization of the area, establishment of towns and cities, and economic development.
Step-by-step explanation:
One event from the late 1800s and early 1900s that caused significant change for Oklahoma was the Land Run of 1889. During this event, thousands of settlers rushed to claim unassigned lands in Oklahoma Territory. The Land Run led to the rapid colonization of the area, the establishment of towns and cities, and the economic development of the region. It brought about a drastic transformation of the Oklahoma landscape and population.
Learn more about Oklahoma in the Early Twentieth Century