The doctrine of popular sovereignty was used. That meant that people in those states could choose to vote to support slavery and since they were majority then slavery would be permitted. There were even states that were at first non-slave states but then things changed and they voted to introduce slavery into the state and people voted for this and supported this.
Thomas Jefferson was the<span> first president to be inaugurated in Washington, D.C.
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Europe could’ve been much different during the Middle Ages if they had lost the Battle of Tours to the Muslims
In Nigeria, conflict between ethnic groups led to civil war.
So correct option is D.
Two unique things to the Mughal empire <u>Rocketry</u> and <u>Art.</u>
<u>Explanation</u>:
Mughal's had treasure of unique artistic skills, involved the launch of Indo-Persian architecture & paintings. It covered monuments like Taj Mahal, Agra Fort, Buland Darwaza, Humayun & Akbar tomb, Jama Masjid, Red fort etc their distinctive art forms are also established in neighbouring countries and paintings by Ustad Mansur which portray many flora and fauna. Other important remarkable works also include Hamzanama, Khamsa of Nizami and Darab Nama. During 16th-century metal cylinder rockets called as “bans” was first introduced by Akbar against war elephants in "Battle of Sanbal".