He met the Queen, he met Prime Minister and even Duke of Cambridge William and his family. He spoke about the European Union and presumably other important things.
But it was just one photo of President Barack Obama's trip to the UK that really mattered to the world.
This was the photo tweeted out by the Twitter handle of the royal family:
Prince George meets The President and First Lady of the United States pic.twitter.com/HZxelhSSr4— Kensington Palace (@KensingtonRoyal) April 22, 2016
And for those who can't get enough of the cherubic prince, there was more:
The Prince's expression is perhaps explained by the fact that he was awake a whole 15 minutes past his bedtime to meet the US President.
Prince George: "Yes, if you could just piss off back to America, I'm actually about to go to bed". That's one's boy. pic.twitter.com/U3IC3XENf7— Elizabeth Windsor (@Queen_UK) April 23, 2016
But generally the consensus was that it was too cute to handle:
Prince George's little toddler robe DOES NOT DISAPPOINT https://t.co/ASrn6m5I9s— Christopher Hayes (@chrislhayes) April 22, 2016
The future king of England meets the present leader of the free world in his PJs and a cute robe. https://t.co/vjaPxuWk3w— Smita Prakash (@smitaprakash) April 23, 2016
Yep, Prince George continues to rule the Internet for now with his tiny hands.