Car

Karl Benz patents a gasoline automobile in 1886 in Germany. Gottlieb Daimler and Wilhelm Maybach build a light high-speed engine in the same years. Earlier steam carriages existed and lost, because they were heavy. The win is an internal-combustion engine small enough for a carriage.

The contribution is personal mechanical transport. A train serves a track. A car serves a road, and then people build the roads. Oil from the 1859 wells is the fuel. Steel is the body. The assembly line, later, at Ford in 1913, is what makes it cheap. The 1886 machine is the proof, not the mass product.

The car also forces a pile of side technologies: rubber tires, better roads, traffic rules, and a fuel distribution network. Suburbs and supply chains in the twentieth century assume it.

Electric cars exist in this era too. They lose to gasoline on range, then return a century later when batteries improve. The 1886 card is the gasoline car that actually spread.