Describe the personality and demeanor of pope saint john xxiii. how do you think his background as a historian influenced his decision to call an ecumenical council?

When we talk about the the personality and demeanor of pope saint john xxiii, he is short, fat, carefree and made the most of his associations with individuals. He also make great jokes and seriously studied the history. His nature with the issues of the past helped him to see the present reality of the Church and the world with clearness.