"STEEPED in history" is it the same as "deeply rooted in history" ? Yes . It means "rich" in history, which is to say, there were many changes and many influences.

Hi Bruce I googled "seeped in history", It has never been said before. So, I think it is steeped that the writer meant, especially that it is not the only typo I've encountered so far. Some times there are logical inconsistencies in sentences too. Perhaps he is not a native, Just like me! Thanks again.

There is some difficulty here. The words SEEPED and STEEPED have at least some association and similarity. In the Free Dictionary Online definitions, one sees SEEPED as "diffused gradually" and STEEPED as "saturated" (as in, getting thoroughly wet--BB) SEEPED suggests that over history, a few events have been experienced in the British Isles. STEEPED suggests that every part of the British Isles has been thoroughly affected by many changes. For me personally, I hear STEEPED more often. We speak of making tea, as a process of STEEPING the tea leaves in hot water. It is possible that the author was using SEEPED appropriately, but I have both read STEEPED and heard it as the more common and appropriate verb.