Answer:
introducing zero as a placeholder
Explanation:
The Maya were one of the earliest ancient nations to employ the concept of zero, allowing them to write and compute vast sums.
<u><em>Thank you! Please Mark Brainliest!</em></u>
<span>That tension came to a head in Korea. Overshadowed by WWII, the Korean War has often been called America's "forgotten war," though like Vietnam it was part of a larger Cold War struggle to extinguish communism. In 1950, North Korean communist troops invaded South Korea, which was an American ally.</span>
By process of elimination the answer is D, I know the rest are true.
Answer:
Add more detail
Explanation:
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