49th century


 * Susan Foreman originally came from this time. (DW: The Pilot Episode)
 * During the 49th century humans terraformed Alfava Metraxis, and began to settle the planet. Over the next two centuries its population would grow to six billion. (DW: The Time of Angels) According to the Doctor, World War V also happened at some point in the this century.  (BFA: Singularity)