During the Vietnam War, many young men in the United States were being drafted into the military to fight in the war. The minimum age for men to join the armed forces was 18 years old, but the voting age was 21.
And so, a debate that was started after World War II, intensified during the Vietnam War as more young men were being forced to fight in a war they didn't agree with, yet denied the right to vote to make change in their country.
Today, the 26th Amendment prohibits the state and/or federal government to deny the right to vote in elections due to age, for anyone over 18. All citizens over 18 can vote in federal and state elections without the fear of being barred from the poll booths.
Marco Polo was the most famous Westerner that traveled on the Silk Road at age of 15
The War of 1812.
A war between the US and G. Britain caused by American outrage over the impressment of American sailors by the British, the seizing of American ships, and British aid to the Native Indians attacking the Americans on the western frontier. All this enhances the feeling of nationalism among the Americans and caused the war of 1812.
The continual flow of the free market is driven by self interest and competition.
