Great Retrenchment
From Tardis Wiki, the free Doctor Who reference
"The Great Retrenchment", a 10,000 year Dark Age began after a conflict between Kallix Grover and the Sine Wave Shrine of Shillitar in 436,000 meant that a wave of magnetic energy hit Earth by mistake. The vast grid of nanotechnology was wiped out and Earth was cut off from space. Humans turned to biology and chemistry.
During this time, in 438,533, Chantal Osterberg created the Hy-Bractors. (PROSE: Only Human)
