19,000 BC- 17,000 years ago the Fallen broke from his brothers establishing the first Decepticons. The Matrix hidden by the Primes. The Sun Harvester built on ancient Africa intact. 10,000 BC -12,000 years ago the Allspark crashed on Earth. Later Megatron crashed on the arctic circle following the Allspark. ??? - The Ark crashes on the moon. Are these coincidences? Here's my theory. Cybertron has a barely operable Space Bridge system/network target locked on Sol. A leftover of the star harvesting program of the Primes. The Allspark was probably chucked off a Space Bridge and Megatron followed. Sentinel Prime used that Space Bridge system to find the Allspark. Only to crash on the moon with the Ark.