Question: When was the first toyota land cruiser made?

context: In 1950 the Korean War created demand for a military light utility vehicle. The war put a Jeep on Japan's doorstep. The United States government ordered 100 vehicles with the then-new Willys specifications and tasked Toyota to manufacture them. The Toyota "Jeep" BJ prototype was developed in January 1951. This came from the demand for military-type utility vehicles, much like the British Land Rover Series 1 that was developed in 1948. The Jeep BJ was larger than the original U.S. Jeep and more powerful courtesy of its Type B 3.4-litre six-cylinder OHV Four-stroke petrol engine which generated a power output of at 3,600 rpm and torque at 1,600 rpm. It had a part-time four-wheel drive system like the Jeep. However, and unlike the Jeep, the Jeep BJ had no low-range transfer case. In July 1951, Toyota's test driver Ichiro Taira drove the next generation of the Jeep BJ prototype up to the sixth stage of Mount Fuji, the first vehicle to climb that height. The test was overseen by the National Police Agency (NPA). Impressed by this feat, the NPA quickly placed an order for 289 of these offroad vehicles, making the Jeep BJ their official patrol car.
question: When was the Toyota "Jeep" BJ prototype, which became the Toyota Land Cruiser, made?
short_answers: January 1951
context: No context provided
question: When was the first prototype of what would become a Toyota Land Cruiser made?
short_answers: 1941

Answer: Production of the first generation of the Land Cruiser began in 1951, while the first prototype of what would become a Toyota Land Cruiser was made in 1941, and the Toyota "Jeep" BJ prototype, which became the Toyota Land Cruiser, was made in January 1951.