Article 1, sec. 8, of the constitution which gives congress the power to make all laws that are necessary & proper for carrying out its duties
Because the Islamic people saw it more than just a religion but an actual way of life in which to follow everyday
An organized prayer session in a public school is seen by some to be the government endorsing a particular religion
They created the number system and discovered that the earth was round by studying eclipses.
Hope this helps.
True, they trade for items that they don’t have or have access to. They also do redundancy trading in case of crop failure. Trading also increases the bonds between two tribes.
Hope you learned something new!! ^v^