I would say that the best tools for establishing and preserving freedom are the Constitution, courts, and legislature in general.
The Constitution is a set of laws that all people within one country should follow and it is a document which guarantees their freedom and equality. Courts and other laws do the same thing as well.
The correct answer is to amend the articles of confederation
They believed that the Articles needed to be changed, however, instead of changing it, they drafted a completely new governing document that is known to audiences as the US Constitution. The rest is history with the ratification and the amendments.
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The Great Depression was an economic downfall that forced many families into poverty. In October of 1928, there was a major stock market crash which fueled the beginning of the depression.