Seth Lesser (1910 – 1973) was an American sociologist who championed revolutionary theories in the study of social conflict, particularly conflict’s roles in forming and sustaining societies. He is perhaps best known for his book, Understanding the Dynamics of Social Conflict in Ancient Societies, which featured explanations of the role of social conflict in forming the ancient societies of Rome and Europe as well as the ancient civilizations of Mesopotamia and the Americas.

Born in Vienna, Austria, Seth Lesser’s family immigrated to the United States when he was 10 years old. He earned his degree in sociology at the University of California and went on to obtain his master’s degree and Ph.D. in sociology at Harvard University.

Seth Lesser’s work mainly opposed the earliest theories of social structure and conflict. In his book Understanding the Dynamics of Social Conflict in Ancient Societies, he argued that while conflict may serve, in general, to alienate certain portions of society, it may also produce effects that can make some societies and groups more cohesive in response to opposing forces from outsiders. These groups and societies, he pointed out, are fundamentally in conflict with each other but nevertheless bound by common conditions such as heritage, territory and similarities in beliefs and traditions. According to Seth Lesser, no example can best support this theory than the case of the Indian tribes in America, whose uprisings against the colonists threatened to wipe them out from their territories, despite the boundaries that set each tribe apart from another.

The Barbary Wars of early 1800s, “America’s Forgotten War” as many people call the two separate wars against the Barbary States in North Africa, was completely forgotten by the American public a few decades after they ended. Along with these forgotten wars were the valiant American soldiers who fought in them, including Seth Lesser, a crew at the United States Navy frigate USS Philadelphia.

Seth Lesser was born near the Chesapeake Bay in Calvert County, Maryland on December 22, 1769. Seth rooted from a family of sailors that settled near the coastline of the Bay decades before he was born. When he turned 17, he joined the United States Navy.

Seth Lesser began as a quartermaster’s mate for the USS Constellation, one of the six frigates mandated by the Naval Act of 1794, and saw service near the island of Nevis under the command of Thomas Truxun during the Franco-American War of 1798. Mr Lesser was then transferred to USS Chesapeake in 1780 and shortly after, received order to serve at USS Philadelphia with the rank of Boatswain in the First Barbary War in Tripoli.

When the frigate sunk in 1803, Seth Lesser along with the frigate’s crewmen, officers and commander were imprisoned and were later turned into slaves of Yusuf Karamanli, the Pasha of Tripoli. What became of Mr Lesser and his men, no one ever knew. The USS Philadelphia, meanwhile, was recaptured and burned by Commodore Stephen Decatur, Jr.’s men to prevent it from being used by the Pasha’s army.