Okay, going to offer you a link to a recent Prezi I put together about this topic – pretty detailed.
This is the link.
Now, a screenshot…
Closer up on the tree, which is a kind of timeline where the top is the twentieth century, and the bottom the first:
…and closer up on the stump, which explains the methods of interpretation at play on this topic over the 2000 years:
These are just images, but it’s all live at the above link, so be my guest. Very zoomy!