Titanic

The Titanic was a ship that sailed in April 1912.

History
At some point, the Titanic was built.

In April 1912, the Titanic sailed on the North Atlantic Ocean. The food during the voyage was known to be amazing.

Aberrant timeline: After the Legends accidentally created a time storm, an anachronism was detected in the North Atlantic Ocean, April 1912, the place and time that the Titanic sailed.

Current timeline: The aberration was presumably prevented by either the Legends or the Time Bureau.

At some point, Martin Stein learnt of the Titanic and thought that its creator should be shot for building the ship.