A joist from one of the walls was dated using dendrochronology to about 1282 and may belong to this earlier fort.
The current roof was put on during this period and has been dated to 1652-1654 using dendrochronology.
One of these documents has been dated to 144 using prosopographical techniques.
The skeletons were dated using radiocarbon dating and were found to have been approximately 13,140 to 14,340 years old.
This was the first early Saxon site in England to be dated using dendrochronology.
The building, which has been dated to 1665 using dendrochronology, served as one of the earliest inns in the region.
They were dated using more modern techniques and found to be 154kya to 160kya.
Darwin glass has been dated at about 816,000 years old using argon dating methods.
The Inner Deposits have been dated to greater than 70,000 years using radiometric techniques.
Fossilized microatolls can also be dated using radioactive carbon dating.