I've started really sinking my teeth into Starfinder which means writing up timelines, fleshing out the skeleton we've been given in the Core Rulebook and Pact Worlds book and collating information together. Here's what I've got so far.
I've successfully linked Earth and Toril together with precise dates as to when contact occurred between those two worlds. I've also given us dates for when Toril entered the Spellplague (it was 5 years after Aroden's death as a big coincidence). The Age of Heroes essentially covers what has happened in our Pathfinder campaigns.
I've also got my writeup on Androids (previously linked) and now humans. I've only covered humans on golarion and akiton at this time. I'll eventually be looking at a writeup on humans for Absalom Station and the Azlanti Star Empire.
I did sneak in a little peek at the fact halflings (i.e. hobbits) are from Earth (known by their scientific name as homo floriensis). I've also included the fact that deep in the Indonesian jungles halflings still exist unbeknownst to the rest of us.