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  The United States purchased 828,000 square miles from France. They paid 15 million for this plot of land west of the Mississippi river
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  Texas declared independence from Mexico and became its independent entity. This is a short venture but one that stood out in Texas History
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  The Republic of Texas joins the United States of America. They were the 28th state to join
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  President Abe Lincoln declared slaves being held to be free from slavery. This was the beginning of the abolishment of slavery
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  The United States being included in the Allies during WW1 gained victory during a world war. This was the treaty that ended the war
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  Severe worldwide economic depression. Started in the United States but had effects everywhere. Caused unemployment, deflation, and declines in output
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  Severe worldwide economic depression. Started in the United States but had effects everywhere. Caused unemployment, deflation, and declines in output
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  The United States was attacked on this day by Japan in a naval surprise attack. This started the US' involvement in WW2
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  Japan surrendered after atomic bombings and this ended WW2
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  Islamist suicide terrorists rode 4 commercial airline planes into different locations. The Twin Towers event killed almost 3,000 people