I doubt that Jihadi-grade Muslims would differentiate.
A millennium here, a millennium there, pretty soon you're talking real time.
I'm a geologist, a millennium is an eyeblink. The time since my ancestors left Normandy and moved to England.
There have been a lot of changes since then, but we still have a tendency to spit after the name Cromwell is mentioned, and still, hold the York clan in disdain. There will be no white roses in the garden, ever.