Sources such as diaries though not very reliable can be used if there are a large amount of them showing the same date and event. Historical books written about the event especially those closer to the time would be able to help determine that the date is accurate as well.
Answer:
Roe v. Wade, 410 U.S. 113 (1973), was a landmark decision of the U.S. Supreme Court in which the Court ruled that the Constitution of the United States protects a pregnant woman's liberty to choose to have an abortion without excessive government restriction.
Explanation:
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The fact that the imperator spent a lot of resources for wars
A country selects its leader by determining the will of the majority voters
Is belief that the legitimacy of the state is created by the will or consent of its people
