The printing press
Movable type printing was introduced to Europe by Johann Gutenberg in the mid-15th century. This technological advance made it possible for a reformer like Martin Luther to spread his ideas widely and rapidly. While overall literacy rates were low at that time, it was common for people to gather for reading of the latest Reformation materials. Hundreds of thousands of copies of tracts written by Luther were printed and distributed -- as well as similar spread of ideas by publishing done by other reformers.
Christopher Columbus and his fellow colonists enslaved the Native inhabitants of the West Indies.
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<span>The prohibition was known as the act of forbidding the sale and even manufacturing of alcohol in the US. The people who did not support the Prohibition claim that it actually takes away people's rights to buy alcohol. Which is why most who supported it were liberals, freedom fighters, and also alcoholics.
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