When U.S. President Gerald Ford and leaders of the five other leading democracies gathered at a 14th-century castle outside Paris on Nov. 15, 1975, they planted the seed for what subsequently became the Group of Seven nations

As world leaders gather in Évian-les-Bains for the Group of Seven summit, issues from energy to AI will be on the agenda.

When U.S. President Gerald Ford and leaders of the five other leading democracies gathered at a 14th-century castle outside Paris on Nov. 15, 1975, they planted the seed for what…