The Greeks spread their culture through trade over the Mediterranean Sea. this spread of ideas and culture is called cultural diffusion.
That's the definition of "free fall".
We can never observe free-fall in our daily life on Earth. There's always
at least one other force besides gravity acting on a falling body, because
it's always falling through air.
On the timeline, an event that happened in 2009 would be <u>To the right of 2000 CE</u>
