Ai (Hebrew: העי‎; "heap of ruins"; Douay-Rheims: Hai) refers to one or two places in ancient Israel:

The Ai mentioned by the Book of Joshua is also mentioned by the Book of Genesis as having been a religious sanctuary, which it claims was founded by Abraham; Abraham's tent, i.e. the area he settled, is stated by the Bible to have been between Bethel and Ai.

In the Book of Joshua chapter 7-8 in the Bible, the Israelites attempt to conquer Ai on two occasions, the first in Joshua 7 failing. The Biblical account portrays the failure as being due to a prior sin of Achan; for which Achan, his children, wife, sheep, and other livestock, are stoned to death by the Israelites. On the second attempt in Joshua 8, Joshua, who is identified by the narrative as the leader of the Israelites, plans and leads an ambush at the rear of the city on the western side. When the city is captured, it is set on fire and razed to the ground. "So Joshua burned Ai and made it a permanent heap of ruins" --Joshua 8:28 NIV.

Kent E. Hovind (born January 15, 1953) is an American young earth creationist. Hovind has spoken on creation science and has aimed to convince listeners to reject theories of evolution, geophysics, and cosmology in favor of the Genesis creation narrative from the Bible. Hovind's views are contradicted by scientific evidence and some of his ideas have also been criticized by young earth creationist organizations such as Answers in Genesis.

Hovind established the Creation Science Evangelism ministry in 1989, and frequently spoke on young Earth creationism at seminars at private schools and churches, debates, and on radio and television broadcasts. Since January 2007, Hovind has been serving a ten-year prison sentence after being convicted of 58 federal counts, including 12 tax offenses, one count of obstructing federal agents, and 45 counts of structuring cash transactions. He is incarcerated at the FPC Satellite Camp of the ADX Florence prison in Florence, Colorado.

On February 9, 1969, at the age of 16, Hovind became a born again Christian. In 1971, he graduated from East Peoria Community High School. He holds three degrees in Christian education (1974, 1988, 1991) from unaccredited institutions. He is married and has three adult children and five grandchildren. One of his sons, Eric Hovind, travels doing creationist presentations and debates using many of his father's arguments.