President Donald Trump and Chinese President Xi Jinping compared the lengths of their respective countries’ histories during a visit to the National Archives.

“We’re just comparing,” Trump told reporters Thursday in the National Archives’ rotunda. “Ours goes 250 years. Which is great, and we’re proud of. Theirs goes 6,000 years. So there’s a little difference between 6,000 and 250. But we’re very proud of our 250.”