For the same reason humans migrated to anywhere else on Earth from Mesopotamia. We(modern humans) are not exactly sure why our ancestors did this. A popular theory is that they were searching for more land to live and farm. For example: If someone builds a house, their descendent can't build another one in the exact same spot. So they have to find a different spot. So they built houses, planted crops, etc and it would grow into a city. Over time, humans spread accross the globe like this.
A toll.
They arrived via a land bridge between modern day Alaska and Eastern Siberia.
A medieval toll was money charged to people who wished to cross a bridge or use a road. Many local lords charged tolls to make profit and to pay for the roads. Certain people such as monks and royal officials were exempt from tolls.
Assuming you mean 'literate' people (people that use the written word) the oldest literate people in Europe were the Greeks who used a writing system now called 'Linear A' that dates back to 1800 BC. We still have not managed to decypher those writings.
GRADPOINT ANSWER: To take the Holy Land back from the Islamic Empires.
The greater availability of low-cost products
the last people to cross the bridge were the natives to the Russian/Alaskan areas..
to spread rice to the world.
The land bridge that let people cross :)
Toll
George washtin bridge
the bering land bridge that allowed people to cross from asia to america
a toll
to get food
The people were following the animals (such as buffalo) as they were hunting them. Back then people followed their food so they could properly eat.
a bridge helps people cross the river
a bridge because it can help you cross two bodies of water or more.