Sunday marked a major milestone for Marietta as it turned 225 years old.
And helping to celebrate the city's birthday was a professor with plenty of knowledge about Marietta's history.
Miami University Distinguished Professor of History, Doctor Andrew Cayton, spoke to a large crowd at the Campus Martius Museum Sunday afternoon.
He lectured about the legacy of the city's founders.
People also got a look at the history behind Marietta and why it's so important for them to commemorate the city's birthday.
"Well I think people need to understand just how grand Marietta was supposed to be back in the 18th century. It was seriously talked about as being the capital of the United States. It was kind of a design city that people hope would be a model for the ways in which Americans would settle across North America," says Dr. Cayton.
Dr. Cayton teaches courses in the history of North America in the 18th and early 19th centuries.
He also served as president of the Society for Historians of the early American republic.