This week in Christian history: Hagia Sophia consecrated; ‘O Holy Night’ becomes first song on radio
![The imposing structure of Hagia Sophia, located in Istanbul, Turkey. The building began as an Orthodox Christian cathedral, was converted to a mosque in the 15th century, and was then made into a museum in the 1930s.](https://cdn.christianpost.com/images/cache/image/6/71/67198_w_700_467.jpg)
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 unknown to many people.
The following pages highlight anniversaries of memorable events that occurred this week in Christian history. They include the birth of Jackson Kemper, “O Holy Night” becoming the first song aired on radio, and the consecration of Hagia Sophia.