Mac Deford and Tom DeMarco are back for a 12th year with their 100-minute History Roadshow, the road taking them to Portland, Rockport and Belfast. They choose as their topic something at least vaguely relevant to the subject of the given year’s upcoming Camden Conference. It always promises to be informative, humorous and, above all, entertaining.

This year’s Tom & Mac History Roadshow, “The World Between the Wars: The Peace of Paris and its Aftermath: 1919-1939 (Ninety minutes of optimism and Ten of despair),” will be presented Thursday, Jan. 25, at 6:30 p.m. at Portland Public Library; Friday, Jan. 26, at 6:30 p.m. at Rockport Opera House, 6 Central St.; and Sunday, Jan. 28, at 2 p.m. at the University of Maine's Hutchinson Center, 80 Belmont Ave./Route 3, Belfast.

This time, the men tackle the Paris Peace Conference of 1919 … and the peace it gave us (?). Among the characters attendees will meet are Gustav Stresemann, the man who put Hitler in jail and who might have helped avoid war; Margherita Sarfatti, the “woman who invented Mussolini, the maddening idealist Woodrow Wilson, the semi-heroic Herbert Hoover, Aristide Briand and Frank Kellogg who together made war illegal (sort of)”; and the heroic photographer Erich Solomon, who recorded them all … and paid for it with his life.

No advanced registration is necessary, but donations are appreciated. DeMarco is the author of 15 books (his speculative novel, “Airship Nation,” is the latest) and a Principal of The Atlantic Systems Guild, a technology think tank with offices in the United States, United Kingdom and Germany. Deford is a retired Foreign Service officer with service primarily in the Middle East. He had a subsequent career with Merrill Lynch International, mostly in South America and Asia, and is a regular columnist with The Free Press.

The annual Mac and Tom 100-Minute History Roadshow is presented as one of dozens of free community events in anticipation of the 31st annual Camden Conference: New World Disorder and America’s Future, Feb. 16 through 18. The mission of the Camden Conference is to foster informed discourse on world issues. For more information, visit camdenconference.org; email info@camdenconference.org; or call 236-1034.

Courier Publications’ A&E Editor Dagney C. Ernest can be reached at (207) 594-4401, ext. 115; or dernest@courierpublicationsllc.com.