1.   Archaeologists knew they were onto something big when they started digging.

2.   Archaeologists do know that the ancient city grew into a metropolis during the first century A.D.

3.   Archaeologists have known about the site for decades.

4.   Agricultural archaeologists know, too, that the vines that produced the best ancient wines were Vitis vinifera, the most important species for modern wine production.

5.   Archaeologists do not know whether they had uncovered his remains.

6.   Archaeologists have long known that the Mayans practiced human sacrifice, removing hearts from living people.

7.   Archaeologists know he was executed at Stonehenge centuries ago, but virtually nothing about who he was.

8.   Before last year, archaeologists knew only that some kind of Taino site existed at La Aleta, in dense tropical forest.

9.   The archaeologists knew early on that they were unearthing a city.