At Science Daily:
Greenland sharks live at least as long as 400 years, and they reach sexual maturity at the age of about 150, a new study reports. The results place Greenland sharks as the longest-lived vertebrates on Earth.
The two largest sharks in this study, at 493 cm and 502 cm in length, were estimated to be roughly 335 and 392 years old, respectively.
So these sharks lived through the English civil war, the Glorious revolution, the American revolution, the French revolution, the Napoleonic wars, the Franco-Prussian war, World War 1, World War 2 and the Cold War. They have seen it all.