Have you ever been travelling? You can do it by foot, bike, automobile, boat, train, and more! 
I love to travel.  Road trips by car are some of my favorite!
Historians think the word travel may have come from the French word travail, which means work
Hmm...I wonder why they would think travel would be work?  Most would think it's relaxing and fun!
Is it thought that the word came from the extreme difficulties of travel in the ancient times
LOL..yes that probably would have been work actually.  Not so relaxing I guess.
Yes, today travel is often much easier due to technology
I grew up taking road trips so those are my favorite but flying is a good way to get places fast.
Indeed! the first recorded road trip was by Karl Benz in 1888
I wonder how far he went?