Chess and checkers are war games. Chess has been found in many ancient civilizations including chinese and egyption(?) and is over 3000 years old.
Wedding cake. Middle european custom. Guests would bring sweet cakes and they would be stacked. The bride and groom were to kiss over the cakes. This lead to the tiered wedding cake.
European guage rail road tracks... the width of the track is based on a horse cart. The width of the wheels on the horse cart was to run in the ruts in the road. The ruts in the road were of Roman origin.
Circumcision is a hebrew/jew religious disfiguration and hence removed from religious necessity by the Christ.
Ear piercing.
Eye liner, and makeup in general. Egyptian.
Astronomy - discovered and developed by the Chinese, Egyptians, Polynesians, and American indians, and others. Astronomical "clocks" to identify the solstices and equinoxes. Remember, the memorial is the first full moon after the spring equinox....
Celestial navigation first developed by the Polynesians and Vikings
Wedding veil. Hiding or disquising the woman on her wedding day, holdover of arabic and hebrew chattel days.
Eastern herbal medicine, accupuncture, moxa, massage, reflexology. Chinese/Japanese healing arts
Tai Chi - marshal art
Basketball - Aztec
Pentangle - 5-pointed star. Pagan AND used by the Rosecrucians
6 pointed star of david
Oh, I'm sure there's more, but these are all I can think of at this time.
-Brenda
PS Fireworks - Chinese, for use in celebration and in war. gunpowder used in firearms.