"On Town Meeting Day, the first Tuesday in March, citizens across Vermont come together in their communities to discuss the business of their towns. For over 200 years Town Meeting Day has been an important political event as Vermonters elect local officers and vote on budgets. It has also been a time for neighbors to discuss the civic issues of their community, state, and nation." -via A Citizen’s Guide To Vermont Town Meeting
While he [Norman Rockwell -ed.] mulled over the problem of the Four Freedoms, he painted another illustration for a magazine cover, went to a town meeting, and attended a Grange supper. One night he went to bed, still struggling to come up with an idea. "As the minutes ticked by, all empty and dark, I suddenly remembered how Jim Edgerton had stood up in a town meeting and said something that everybody else disagreed with. But they had let him have his say. No one had shouted him down. My gosh, I thought, that's it. There it is. Freedom of Speech. I'll illustrate the Four Freedoms using my Vermont neighbors as models."
Further reading at The Nation Archives / Four Freedoms.