Talk about laying down a marker. Make no mistake about it, rookie years in F1 are difficult, but someone forgot to tell Hamilton that. Kicking off an F1 career with 9 straight podiums isn't too shabby and he claimed a total of 4 wins throughout the year. In all honesty, he should have won the championship too, but he had a nightmare finish to the season and was pipped by Kimi Raikkonen.
Whilst this record has since been taken away from him, Hamilton became the youngest ever world champion in 2008 and he did so in dramatic fashion. The season itself was a little patchier from Hamilton, but he claimed the title on the final lap of the final race.
After watching Sebastian Vettel's Red Bull dominate for years, Hamilton ended his championship drought in 2014. He took 11 wins in the season (which is the most he's got in one season) and beat his teammate Nico Rosberg by 67 points.
Hamilton claimed title number 3 in 2015 and did so with time to spare, victory in the US gave him the title with three races to go. Perhaps the most impressive thing about this season was his consistency as he finished on the podium in all but two races.
Mercedes' dominance in the sport was seriously tested in 2017 with Ferrari much improved, but a good run of form (and an unreliable Ferrari team) after the summer break meant that the 4th world championship became inevitable.