The tour de france looks so physically taxing
The The Tour de France race was first organized in 1903 to increase sales for the newspaper "L'Auto"; which is currently run by the Amaury Sport Organisation.
Haha it became so huge off of a simple promotional stunt.
Yes, indeed! And, were you aware that it has been held annually since its first edition in 1903 except when it was stopped for the two World Wars? 
Dang i guess thats a good reason to stop it.
Yeah! And it is a tradition that the race is held primarily in the month of July. Although, I am not sure why or what started that. 
Wow and its been around for over a hundred years at this point too.
Yes it has! The Tour  de Franc started from a primarily Grench field and then expanded from there.
Oh yea and now its a huge torunament
Yes it is. It consists of 21 stages over a little more than 3 weeks.