Wheel (C-evo)

The Wheel is often the first advance a C-evo nation will seek, because it gives an immediate increase in the speed at which advances are discovered as soon as you have built any on a , , , , or even tile that is being worked. 
It can usually be partly obtained in a technology exchange with the first nation you befriend if you have researched something else such as .
The effect is doubled when you build a Superhighways system, but that will provide no benefit under your initial , Despotism.
The Wheel also has military and movement significance in the advances that it leads to.