The Bible provides a complete genealogical record starting with Adam and ending with Jesus.
Beginning with David, as shown in the chart above, the Bible gives the family tree of both Mary and Joseph.
The genealogies are in Genesis 5, Matthew 1, and Luke 3, plus supporting segments in other books of the Bible.
Virtually all Bible scholars agree that there are no significant gaps in these reported famly lines.
Bishop James Usher was a church leader in Ireland, prolific scholar and author of The Annals of the World. Using Bible genealogies, he calculated that Adam was born in the year 4004 BC. This date has been widely quoted and accepted ever since.
Over the last 400 years, hundreds of other historians and theologians have drawn the family tree from their own study of the Bible, and nearly everyone comes to the same conclusion: Adam lived about 4000 BC.
Some Christians who know that dating Adam to 4000 BC is out of synch with everything we now know about the world, try to shrug off the conflicts by saying, without evidence, that there are gaps in the Bible genealogy.
But there are big problems with that response: