Common change is around all environments, from pretators, prey, food supply, and many more simple things. But change realy never happens unless its is forced. Natural selection
Contrasting colors. You focus on the person with the umbrella because it's a black figure against a white background.
The center of the Roman Empire is in Italy. ROME. And to be specific,
there was a spot in the forum called the "umbilicus urbis Romae" which
is translated "the center of the city of Rome" or "the navel of Rome".
At any rate, it was the spot from which all distances, from all over the
empire, were measured.
What are you talking about?
