Final answer:
Wabash, Indiana was the first town to replace all its gas streetlights with electricity in 1880, igniting the transition from gas to electric street lighting.
Step-by-step explanation:
The town that first replaced all of its gas streetlights with electricity in 1880 was Wabash, Indiana. This transition marked a significant step in the use of electricity over gas, setting a precedence for towns and cities across the world. The change was made possible by Charles Brush, who installed his arc lamps in the town's courthouse, igniting the transition from gas to electric-powered street lighting.
Learn more about Electric Street Lighting