Immanuel Wallerstein (28 September 1930 – 31 August 2019), the political sociologist best known for his writings on the “world system” and I were friends in the mid 1950s. Perhaps not close friends but at least both student activists in the world federalist/world citizen movement, especially in their international dimension. We shared a common analysis of situations and were largely in agreement as to the short-term steps to be taken. I would not say we influenced each other, but rather that we shared a common approach coming from different directions. Our shared interest in Africa as the early 1960s brought independence and later there was a focus on what Manny (as he was known by his friends) called the “world system” and I “the world society.” After the late 1950s, we rarely saw each other, but we continued to exchange offprints of our articles instead of Christmas cards at the start of the year.