Islam was spread to the middle east and north africa

Islam predominantly in the Middle and East North Africa, up to the Pacific and the Atlantic.

Explanation:

Muslim dynasties are very fast established. Scientists from the Muslim world founded large school and university centers, libraries, where they gathered knowledge from the whole ancient world, which contributed to the golden age of Islam.

During the golden era of Islam, Islamic writing expanded and consolidated through the written word. Also, many dynasties strives for territorial expansion and embarked on the conquest, where, normally, the conquest implies the expansion of Islam.

Senators however, serve six-year terms and elections to the Senate are staggered over even years so that only about 1/3 of the Senate is up for reelection during any election.

Explanation:

A senator's term of office is six years and approximately one-third of the total membership of the Senate is elected every two years