Between the 770s and the 1300s, Arab scholars helped preserve much of the learning of the ancient world that otherwise would have been lost. They also made many other contributions to the modern world. The use of Arabic as a common language helped unite the scholars and promote the sharing of knowledge. The Quran being written in Arabic contributed to this advancement.
Many Arab scientists tried to turn base metals, such as tin, iron, and lead, into gold and silver. These scientists, called alchemists, used both chemistry and magic in their work. Alchemists were never able to turn base metals into gold and silver. However, their work led to the practice of making experiments and keeping records of the results. The Arabs are considered the founders of modern chemistry.
Arab astronomers studied the heavens. They gave many stars the names they still carry today. They correctly described the eclipses of the sun. they also proved that the moon affects the tides. The astronomers worked with Arab geographers to determine the size of Earth and the distance around it. From their studies, they decided that the Earth might be round.