May 13, 1938 is when armistice Day was declared
The end of the Ice Age meant that there was going to be much more water than land. That flooded the ways of transport that Early People had, the result was that it as even more difficult finding food and shelter.
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Explanation:A progressive tax is one that charges a higher tax rate for people who earn a higher income. The rationale is that people with a lower income will usually spend a greater percentage of their income to maintain their standard of living. ... The income tax system in the United States is considered a progressive system