While you can still visit the remains of Silk Road, the ruins of the Aztec pyramids, and what's left of the Atlantic Wall, the world has changed significantly since these turning points occurred. Rome's empire is gone, Spain is out of the colonization business, and Mesopotamia is a collection of artifacts spread around the world in various museums.
If you compare your thematic map with a current map of the world, you'll notice
that many of the names and borders of the places you've studied have
changed. Modern cities or countries have taken over, and the ancient
kingdoms and conquests have faded away.

For each area that you added to your thematic map, figure out what political (country) boundaries exist there today. Draw and label the country, city, or state that lies where each of your turning points once happened.