<span>AMENDMENT XVI: Income Taxes (1913)
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<span>It states that the Congress shall have power to lay and collect taxes on incomes, from whatever source derived, without apportionment among the several States, and without regard to any census or enumeration</span>
Answer: Leonhard Euler
Explanation: Although Albert Einstein perfected pie, It is widely acknowledged that Leonhard Euler makes it first.
Answer:
Athenian democracy developed around the sixth century BC in the Greek city-state (known as a polis) of Athens, comprising the city of Athens and the surrounding territory of Attica.
Explanation:
The Constitution provides that an amendment may be proposed either by the Congress with a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional convention called for by two-thirds of the State legislatures.