I've already talked about this world in this How would criminals be punished in a world where everyone can teleport?
Everyone in this world from the age of 5 can teleport to anywhere they have been before even if they forgot how to go there. This started about 4,000 B.C.E where a bright green star landed on earth and affected all humans to be able to teleport, they can teleport with them 5 times their weight (they choose what they bring) and if anyone forgets a place they've been they can not go there. The reason why young people can't teleport is because the part of the brain isn't fully developed.
My story takes place between 3,000 B.C.E and 2,000 B.C.E. I want to know how advance would they be by then?
I thought of a quick way to measure the distance of planets, the moon and the sun. If a person wanted to measure how far the moon is approximately all they need to do is walk 40 or so miles and then check the angle of the moon in both spots. I also thought that moving things would be easer so building big structures like the pyramids would take less time.