NEED HELP ASAP !!

What were Solomon Northup inventions?

What other considerations besides geographic ones did the allies have to take into account when choosing a site for the invasion?

He seventeenth amendment to the us constitution calls for the direct election of all us senators. this means that the people of each state get to vote to decide who will be their two us senators. before this, the legislatures of each state chose the two us senators from that state with no direct involvement of the average voter. why would this amendment be considered a reform? how would it benefit the people? even today some people claim that the seventeenth amendment was a bad idea. what arguments could be made for reverting selection of us senators back to the state legislatures?

Which of the islamic empires (ottomans, mughals, safavids) were the most influential and why?