On August 29, 2005, New Orleans was affected by Hurricane Katrina. The special systems built to protect the city failed in several ways. It is estimated that more than three quarters (3/4) of New Orleans was under water in early September of 2005. Sewer, phone, electric and fresh water systems failed. Many people drowned. Many homes were completely covered with water. Important records, some from the French period of the 18th century were destroyed.