In mathematics, an abelian group, also called a commutative group, is a group in which the result of applying the group operation to two group elements does not depend on the order in which they are written. That is, the group operation is commutative. With addition as an operation, the integers and the real numbers form abelian groups, and the concept of an abelian group may be viewed as a generalization of these examples. Abelian groups are named after early 19th century mathematician Niels Henrik Abel.The concept of an abelian group underlies many fundamental algebraic structures, such as fields...

Germany is an unincorporated community in Houston County, Texas. It is located 10 miles northeast of Crockett on Texas State Highway 21. The first settler was Jacob Masters, who brought his family and slaves there. Later, he and his son attempted to get land through the Mexican colonization laws. They each received a league of land (approximately 3 miles). John Burt was the first person in Germany to obtain a deed of land for 160 acres. The original school, built in 1883, became a black school after a new building was erected for white students. By the 1950s, Germany School was closed and...