Simplify the following text for a Grade 11 native English-speaking person.
Original: They originate from the Punjab region , which has been host to some of the oldest civilizations in the world including one of the world 's first and oldest civilizations , the Indus Valley Civilization .
Simplified: They come from the Punjab region , which has been home to some of the oldest civilizations in the world including one of the world 's first and oldest civilizations , the Indus Valley Civilization .