Im assuming you meant acient and modern Olympics
If so, here is a list of some of the changes
- In ancient times only Greeks could participate, and now we have worldwide participation
- Technology (such as shoes) help atheletes break world records
- Women may participate in the modern games
- Changed from a way of worship to purely recreational
- There could only be one winner in the ancient olympics
- We now have both a winter and summer olympics
- We hold ours in a different location each year, when back then it was always held in Olympia
