The United States added Oregon because of the treaty signhed with spain the qonis treaty
Islam gained momentum during the 10th century in West Africa with the start of the Almoravid dynasty movement on the Senegal River and as rulers and kings embraced Islam. Islam then spread slowly in much of the continent through trade and preaching.
April 15,1564 at Stratfordupon-Avon, United Kingdom
The Grand Canyon or the Mississippi River:)
I'm pretty sure its The Preamble, The Articles and, The Amendments