An oasis is a desert area that contains water. Bedouins interacted with people who settled at oases and lived a sedentary, or settled, life. Often, this interaction meant that the settled population traded food that they grew to the nomads for animals and animal products. Bedouins have lived in Arabia for centuries.
The Soviet Union's creation of the Sputnik 1 satellite started the "Space War." This helped with a bunch of technological advancements and space research which directly affects our society now.