1885B was an ABC timeline, and a year in the 19th century.
History[]
This timeline was created when Marty McFly travelled from 1955D to save Doc Emmett Brown from being shot in the back by a local outlaw Buford "Mad Dog" Tannen.
In this timeline, Marty met his ancestors Seamus McFly, Maggie McFly and new-born William McFly in the McFly Farm. On September 3, Marty insulted Buford by calling him "Mad Dog"—an alias that Buford hated—leading to a chase that resulted in Marty almost being hanged by Buford's gang and being saved by a shot on the rope by Doc.
The photograph of Doc's tombstone that Marty took in 1955D at the Boot Hill Cemetery had the name "Emmett Brown" disappearing on September 5 but the tombstone itself and dates still remained on the photograph. This happened when Marty tossed a frisbee plate to block a shot fired by Buford Tannen to kill Dr. Emmett Brown and agreeing a duel with him on September 7. It then slowly increases the chances of the name "Clint Eastwood" (Marty's alias) being replaced for its grave from being shot by Buford Tannen.
The duel on September 7 occurred with Marty wanting to settle the duel with Buford Tannen, only to still be shot. When Buford was about to deliver a killing blow, Marty kicked the gun out of Buford's hand and stood up to the outlaw, very much alive. Marty had used a stove as a bulletproof vest to block the shot and a punch from Buford Tannen. Marty defeated Buford by delivering a blow that knocked him unconscious, causing the outlaw to collapse into the A. Jones Manure Hauling cart.
Marty later travelled back to 1985 later that day, leaving Doc and Clara Clayton behind in this timeline.