<span>Al─Khwarizmi wrote an algebra textbook that was the standard for centuries during the golden age of islam :)</span>
D: Djenn'e-Djeno. Songhai collapsed, Mali fell to Songhai, and Ghana fell centuries earlier than Morocco's existance.
Answer:
Sarah's Shoe Shop signed a new local advertising deal to increase brand awareness.
The successful launch of Sputnik 1 was the first instance of a successful launch of an artificial Earth satellite launched into outer space. This was done successfully by the Soviet Union on October 4, 1957. This launch spawned the Space Race between the United States and the Soviet Union to gain dominance over outer space technology to prevent either country from possessing a military advantage.
They were both concerned about Russia because it was a large and influential country