Final answer:
The loss of the Mars Climate Orbiter spacecraft is an event that occurred because the wrong system of measurement was used - the thrusters were programmed in terms of English units instead of metric units, leading to the spacecraft following a different trajectory.
Step-by-step explanation:
An event that occurred because the wrong system of measurement was used is the loss of the Mars Climate Orbiter spacecraft in 1999. The engineers built the spacecraft using metric units, but the thrusters were programmed in terms of English units. This resulted in the spacecraft following a different trajectory than intended, causing it to either burn up in the Martian atmosphere or shoot out into space.