Project Haven was commissioned by Alliance High Command following the Battle of Yavin. Its goal was to scour the galaxy for new safe worlds to use as headquarters. The thousands of worlds discovered included Hoth and Pinnacle Moon.
After the Liberation of Coruscant, many in the New Republic wanted to symbolically burn the Project Haven files, but they were kept as a precautionary measure. However, the safe-world list was largely compromised by agents of Thrawn.