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Maya also farmed field raised up from the bajos, or low, swampy areas . They created these fertile farm areas by digging
The Maya created arable land by using a "slash-and-burn" technique to clear the forests. They planted maize and secondary crops such as beans, squash, and tobacco. In the highlands to the west, they terraced the slopes on mountainsides; in the lowlands, they cleared the jungle for planting.
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The Unit 731 experiments involved infecting prisoners, primarily Chinese prisoners of war and civilians, deliberately with infectious agents, and exposing prisoners to bombs designed to penetrate the skin with infectious particles.
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It was important because it was marked by extensive discoveries and inventions in Science, Technology, Engineering, Art, Dialectic, Literature, Logic, Mathematics, Astronomy, Religion and Philosophy.