"the american electorate began seriously to question the competence of the bush administration as a result of

Hurricane  Katrina hit the Gulf Coast on August 29, 2005 with sustained winds of 125 mph. It damaged an estimated $100 B in properties and approximately 1000 people lost their lives.

Hurricane Katrina badly blemished George W. Bush's reputation. His administration failed to timely and efficiently deal with the calamity.

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

these civilizations were located around fertile rivers, where they could produce an abundance of crops