Answer:
Based on this fact, I have recognized the most sensible conclusione about roman trade during augustus’s reigh which is being shown in the option : traders were hesitant to buy and sell grains because of war. During this war Sextus Pompeius set control over the sea which means he made an obstacle for trade.
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The most important event was obviously the American Civil War from 1861-1865. This led to the 14th Amendment which defined a citizen as "any person born or naturalized in the US." The 13th Amendment abolished slavery, and the 15th Amendment prohibits denying the right to vote to someone because of their race.
Other key events include the Louisiana Purchase, the Texas Revolution, The Spanish-American War, the War of 1812, the purchase of Alaska, the Mexican Cession, the Indian Wars, and the California Gold Rush.
Like I said, the right to vote was extended to all male citizens by the 15th Amendment. Women were not given the right to vote until the 19th Amendment was passed in 1920.
The answer is water because today not everybody has gold or land or silver and everybody has water and til this day still uses it.
I think it's Han
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1. Economic system
2. hold society together
3. service of political system
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