When was the grand canyon discoverd

I discovered the Grand Canyon last week when I went there. It's your turn now go discover it. Pun intended. 😁

The first Europeans reached the Grand Canyon in September 1540.

Wikipedia states: The first Europeans reached the Grand Canyon in September 1540. It was a group of about 13 Spanish soldiers led by García López de Cárdenas, dispatched from the army of Francisco Vásquez de Coronado on its quest to find the fabulous Seven Cities of Gold.

Can't remember. But if you were to check out the grand canyon website, you would find out everything you want to know.