Law for the Prevention of Genetically Diseased Offspring or "Sterilisation Law" was a statute in Nazi Germany enacted on July 14, 1933, which allowed the compulsory sterilisation of any citizen who in the opinion of a "Genetic Health Court" suffered from a list of alleged genetic disorders – many of which were not, in fact, genetic. The elaborate interpretive commentary on the law was written by three dominant figures in the racial hygiene movement: Ernst Rüdin, Arthur Gütt and the lawyer Falk Ruttke. The law itself was based on the American Model Eugenical Sterilization Law developed by Harry H. Laughlin.
The farmers in Sumer created levees to hold back the floods from their fields and cut canals to channel river water to the fields. The use of levees and canals is called irrigation, another Sumerian invention
The dynasties created gunpowder, porcelain, and paper currency which would benefit the economy. Politically, people were able to move around the empires, many cities gained a higher population, thus leading to a social advancement.
