News broke in July that Mark Burnett and Roma Downey had set the follow-up to History mini “The Bible” at NBC. Today, the Peacock made the project official, greenlighting the 12-hour miniseries titled “A.D.” for a spring 2015 debut.

“Last year when Mark Burnett was launching ‘The Bible’ on cable, I told him, without hesitation, that if he wanted to tell more of the story, we’d love to do it at NBC,” said Robert Greenblatt, Chairman, NBC Entertainment. “We are firmly in the ‘event’ business and nothing has more event potential than ‘A.D.’ as it continues immediately after the ‘The Bible’ ended. The heft of a broadcast network, combined with the promotional arms of NBCUniversal and Comcast, will push this miniseries to a mass audience. We value our relationship with Mark and Roma and know that no one could bring this story to life better than them.”

Simon Block is attached to “A.D.” as scribe. Cast and director have yet to be announced.

“The Bible,” which ran this spring on History, secured 13 million viewers during its premiere, and closed out its run with 11.7 million viewers, topping timeslot competitor “Walking Dead.”

“A.D.” will be produced by LightWorkers Media. Burnett, Downey and Richard Bedser are exec producing.