On June 26, 1945, after months of negotiations in the city of San Francisco, representatives from 50 countries signed the Charter of the United Nations. In October that year, after the requisite number of countries ratified the charter, the United Nations was born.

To mark the 75th anniversary of the signing of treaty that created the United Nations, I am re-leasing a conversation I had with author Stephen Schlesinger who wrote the definitive book about the 1945 San Francisco Conference, Act of Creation.

Stephen Schlesinger and I recorded this conversation exactly five years ago, when the UN turned 70. We discuss the history of the UN Charter and the post war diplomatic intrigue that lead to its signing.