Spencer needs to revise his essay to use a more formal tone.

One cool fact I found studying Greek mythology is the connection to modern names. For instance, my hometown, East Sparta, Ohio, is named after the home of the awesome Greek warriors!

Which revision of Spencer's essay best uses a formal tone?

One interesting fact I found studying Greek mythology is the connection to modern names. My hometown is East Sparta, Ohio, which is named after the home of the fierce Greek warriors.
Isn’t it interesting how Greek mythology connects to modern names? East Sparta, Ohio, for instance, is named after Sparta in Greece, which you know is home to the strong Greek warriors.
An interesting fact about Greek mythology is its connection to many modern names. One example is East Sparta, Ohio, a town that takes its name from the home of Greece’s famous warriors.
Have you noticed how many modern names come from Greek mythology? I didn’t know until now that my hometown, East Sparta, Ohio, is named after the home of some very fierce Greek warriors.