History is a very important dimension of our identity. Those who do not learn from history tend to bury the good achieved and opt to repeat the mistakes of history, often with consequences worse than in the past. The present work puts together several essays on diverse moments in the history of Christianity. Today, we stand between the memory of the past and the hope of a better future. The book does not romanticize the past, but takes a good hard look at it. Mistakes have been made, some of them, tragic and shameful. Good has also been achieved, some of it lasting even to our time. History moves forward. Time does not stand still. The world is changing. We try to learn from history to avoid the negatives, to build on the positives, and to leave behind a world better than the one we received from our ancestors.