how old is it?

We found a cross-section of an amazing tree outside the Yosemite Museum. Just to let you know how old it really is...here are a few dates to ponder:

• A.D. 923
• 1066 Battle of Hastings
• 1215 Magna Charta
• 1492 Landing of Columbus
• 1620 Landing of Pilgrims
• 1776 Declaration of Independence
• 1860 Civil War
• 1864 Lincoln signed Yosemite Grant
• 1890 Yosemite national Park