I believe it is Australopithecus afarensis
I would argue that the primary difference was the introduction of nuclear weapons after WWII--meaning that the spread of communism could actually take over the world as opposed to just causing unrest in the US.
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The Delian League (or Athenian League) was an alliance of Greek city-states led by Athens and formed in 478 BCE to liberate eastern Greek cities from Persian rule and as a defence to possible revenge attacks from Persia following the Greek victories at Marathon, Salamis, and Plataea in the early 5th century BCE.
Answer: The Tang dynasty is famous for its territorial expansion, its great cities and palaces, its flourishing foreign trade, its art, literature, and religious life, and for the luxurious lives of its aristocrats. he made gunpowder
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