Use stream of consciousness to answer the following. In Miami, James won his first NBA championship in 2012, and followed that with another title a year later. He was named league MVP and NBA Finals MVP in both championship years. In 2014, James opted out of his contract with Miami after four seasons to re-sign with the Cavaliers. In 2016, James led the Cavaliers to their first NBA championship by defeating the Golden State Warriors to end Cleveland's 52-year professional sports title drought. In 2018, he opted out of his Cleveland contract to sign with the Lakers.

Answer this question based on the passage: what season did lebron win his first championship?
To answer the above question, the relevant sentence is: In Miami, James won his first NBA championship in 2012, and followed that with another title a year later. Final answer: 2012.