Taking a Bead on an Old Earth
A dozen seashell necklaces (or perhaps bracelets) were discovered in a cave in Morocco, North Africa. The discovery surprised archaeologists who dated the ornamental jewelry at 82,000 years old but previously believed that humans had not developed such art until around 50,000 years ago.
Dating such discoveries has led some Christians to wonder when God created humans. Many “progressive creationists” have gradually pushed their range of dates back: 10,000–25,000 years, then 10,000–35,000, up to 60,000, and sometimes up to 100,000 years.
A clear reading of Genesis, on the other hand, shows that mankind was created about 6,000 years ago, but all vestiges of the earliest cultures were destroyed during the Flood. These artifacts, found in post-Flood geologic formations, must be less than 4,500 years old.
The dating methods of secular archaeologists are based on incorrect assumptions, and the key to correct dates is the infallible Word of God.
http://www.answersingenesis.org/articles/am/v3/n1/taking-a-bead