Timeline (Mermachines)

Ancient times

 * Some time before the dinosaurs died: A mysterious crystal emerges forcing a handful of land animals to the sea. It is revealed that the dinosaurs weren't in need of heading back towards land and their back halves became mermaid tails.

Rise of Man

 * Over time, land and sea creatures began to diverge in their evolution. Humans and land animals headings towards the seas were given the mergene, while those heading towards the land became bipedal and quadripedal species.

New Great Depression (1946-1952)
The New Great Depression lasted for less time than in Attack Machines, partly due to the survival of all merpeople. Merpeople were fast enough to create larger cells and keep larger swathes of population intact.

2020

 * May 10 - Unlike Attack Machines, there isn't utter ruckus in the surface world. It is reported that, out of the group of 137, two were forced to stay in the Floridian Kingdom in this timeline, and that Cláudio Dyer moved to this timeline.
 * December 14 - Cláudio Dyer from Attack Machines (in exile in Fortaleza) is reportedly sending a curse to that world in order to stop the XCORP dictatorship and revert its effects.