This document provides a timeline of key developments in self-propelled vehicles from 1335 to 1886. Some of the earliest developments include a windmill-driven war wagon designed by Guido da Vigevano in 1335 and a clockwork-driven tricycle designed by Leonardo Da Vinci in 1478. Other important milestones mentioned include Nicholas Cugnot's steam-powered vehicle in 1769, widely considered the first automobile; Richard Trevithick's steam locomotive demonstration in 1801; and Karl Benz's gasoline-powered automobile, the Benz Patent-Motorwagen, in 1886, regarded as the first practical automobile. The timeline shows the progression from early human-powered vehicles to early steam-powered