-
1 BCE
Grand Canyon begins to form.
EDIT. SIX MILLION TO FIVE MILLION YEARS BC. This website says that is an invalid date, but that is the time. This date can not be confirmed, it is a general idea. -
Period: 500 to 1500
Anasazi live in Canyon
-
Period: 1200 to
Havasupai tribe inhabit Canyon
Relative date. -
1539
Europeans discover Colorado River
-
1540
First Europeans Reach Grand Canyon
Spanish explorers are the first Europeans to explore the Canyon -
Grand Canyon Becomes National Forest
Grand Canyon receives federal defense as a national forest via proclamation from Benjamin Harrison -
Theodore Roosevelt makes Grand Canyon a National Monument
He visited it in 2003 and thought it was really something special -
Made into a National Park
-
Grand Canyon Skywalk construction begins
-
Grand Canyon Skywalk opens to tourists