Answer:
Step-by-step explanation:
The author could add the following evidence to support their claim:
Examples of how each era improved the way the wheel was used.
Reasons why travel became more accessible with the invention of the wheel.
These pieces of evidence directly relate to the claim that the history of travel is closely connected to the evolution of the wheel. By providing examples of how different eras improved the way the wheel was used, the author can demonstrate how the development of the wheel impacted the way people traveled over time. Additionally, by explaining why travel became more accessible with the invention of the wheel, the author can show how the wheel played a crucial role in the history of travel.