i think you mean antibiotic ... but Alexander Fleming was the one who advanced the antibiotic (world) and was responsible for creating these categories of medicine... this affected the 20th century because millions of people use antibiotics everyday and without them... many diseases would still affect people without a cure
The First Crusade is initiated when Byzantine Emperor Alexius Comnenus requests help in reconquering from the Seljuk Turks the lost territory of Asia Minor . Pope Urban II at the Council of Clermont calls upon the princes of Christendom for an armed “pilgrimage” to recover Jerusalem from the Muslims.
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In this political cartoon, the author shows Uncle Sam standing on top of the world. This represents how much power that the America received from the Monroe Doctrine and shows their status in relation to the rest of the world.
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rules have been added, equipment has been upgraded.
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The main idea was to explore and conquer more land to grow
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