Oklahoma History Cheat Sheet 2026

The 30 highest-yield Oklahoma History facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which five tribes are collectively known as the 'Five Civilized Tribes' of Oklahoma? → Cherokee, Chickasaw, Choctaw, Creek, and Seminole
2. Phillips Petroleum Company, a major Oklahoma-based energy firm, was co-founded in Bartlesville in 1917 by which brothers? → Frank and L.E. Phillips
3. What was the Enabling Act of 1906, as it related to Oklahoma statehood? → It authorized Oklahoma and Indian Territory to form a state government
4. How should an Oklahoma History professional handle a situation outside their scope of competency? → Recognize limitations and refer to or consult with appropriate specialists
5. The Oklahoma Constitutional Convention of 1906 produced one of the longest state constitutions. How many delegates attended? → 112
6. The Oklahoma Supreme Court is the highest court for what types of cases? → Civil cases
7. The first governor of Oklahoma was chosen. → Charles Haskell
8. On what date did Oklahoma officially become the 46th state of the United States? → November 16, 1907
9. Guthrie and Oklahoma City were both established on the same day during the Land Run of 1889. What approximate populations did they reach within hours? → Both had populations of approximately 10,000-15,000 by nightfall
10. What was the 'Osage Reign of Terror' in the 1920s? → A series of murders targeting wealthy Osage for their oil headrights
11. What was the Dawes Act of 1887's primary impact on Native American tribes in Indian Territory? → It allotted tribal communal land to individual Native Americans
12. Which tribe established the first Native American newspaper, the Cherokee Phoenix, in 1828? → Cherokee Nation
13. The Indian Removal Act of 1830 was signed by which U.S. President? → Andrew Jackson
14. The First Regiment of New Mexico Cavalry Volunteers under Kit Carson helped build Fort Nichols in the Oklahoma Panhandle. What position did he have? → Colonel
15. What is the consequence of non-compliance for Oklahoma History professionals? → Potential fines, license revocation, legal liability, and reputational damage
16. What was the 'Hell's Fringe' or 'No Man's Land' that eventually became the Oklahoma Panhandle? → A narrow strip of land with no territorial government that attracted outlaws and squatters
17. The Homestead Act of 1862 provided settlers with how much land, which was the standard allotment in the Oklahoma land runs? → 160 acres (a quarter section)
18. Approximately how many people died and how many buildings were destroyed in the Tulsa Race Massacre of 1921? → An estimated 100-300 killed and over 1,200 buildings destroyed
19. Oklahoma joined the union as the ___ state. → 46th
20. Why is evidence-based practice important in Oklahoma History? → It integrates best available evidence with professional expertise for optimal outcomes
21. This well-known individual is a resident of Oklahoma. → Garth Brooks
22. The earliest fort built in what is now Oklahoma was named. → Fort Gibson
23. What is the importance of data security in Oklahoma History digital applications? → Protecting sensitive information from unauthorized access, breaches, and loss is essential
24. What role does peer review play in Oklahoma History practice? → It provides quality assurance and professional development through collegial evaluation
25. Route 66, which passed through Oklahoma, was economically significant primarily because it: → Enabled cross-country automobile travel and tourism through Oklahoma towns
26. What was the significance of the Sequoyah Convention of 1905? → It drafted a constitution for a proposed all-Native American state
27. What event in 1906 resulted in the formal dissolution of the Five Civilized Tribes' governments? → The Curtis Act of 1898 fully took effect
28. How do Oklahoma History professionals evaluate research quality? → By assessing methodology, sample size, peer review status, and relevance to practice
29. On April 22, _____, The first Oklahoma Land Run reportedly attracted 50,000 settlers. → 1889
30. How does a Oklahoma History professional communicate risks to stakeholders? → By presenting risks clearly with context, potential impacts, and recommended actions