Throughout the extensive history of the Church, there have been numerous events of lasting significance.
Each week brings anniversaries of impressive milestones, unforgettable tragedies, amazing triumphs, memorable births and notable deaths.
Some of the events drawn from over 2,000 years of history might be familiar, while others might be previously unknown by most people.
The following pages highlight anniversaries of memorable events that occurred this week in Christian history. They include the ordination of John Donne, Patriarch Kirill becoming head of the Russian Orthodox Church, and the first-ever March for Life.