Construction beginning/end
The Rostran Archipelago Confederacy uses long rope bridges to suspend the first skystations in stable positions within the microgravity regions of the commissures of their home cube. Aerostats using hot air for lift affixed to complex pulley systems are used as "elevators" to ferry cargo quickly from one side of the commissure to the other. The Voxelians will not follow suit for another 256 years.