How it unfolded
On a course marked out with straw bales between runways of a former wartime bomber base, the first race of the world championship was held. Twenty-one cars started over 70 laps of the 4.649 km circuit — roughly 325 km in total. Alfa Romeo entered four 158s for Farina, Fangio, Luigi Fagioli and British privateer Reg Parnell, filling the entire front row. Farina took pole and led throughout. He spun once at Stowe mid-race but recovered; Fangio retired on lap 62 with a broken connecting rod. Farina won at an average of about 146 km/h, set fastest lap, and Fagioli and Parnell completed an Alfa 1-2-3. Parnell kept third after hitting a rabbit that dented his radiator cover. King George VI and Queen Elizabeth attended — the only time a reigning monarch has watched the British Grand Prix in person. The Indianapolis 500 counted as a championship round that year, but no European team entered it.
Why it still matters
This race is the origin point of Formula 1 itself. Grand prix racing dated to 1906, but this was the first time separate national races were linked by a single points system to crown one world champion. Silverstone became the championship's spiritual home, and the Motorsport Valley that grew around it in the English Midlands remains where most of the grid builds its cars.