#2 European record for most goals in a calendar year: Lionel Messi, 91
The record for most goals scored in a calendar year is held by, well none other than the Argentine genius Lionel Messi himself. Messi scored an incredible 91 goals in just 69 appearances for club and country over the stretch of the year. On his way to the record, Messi broke Gerd Muller’s long-standing tally of 85 goals in a calendar year.
Barcelona ended up winning the Copa Del Rey that year but was a disappointing year for the club overall. However, the scoring streak the Argentine racked up was mesmerising. It remains a record that probably won't be touched for a long time in the European game.
Messi went on to win another Ballon d'Or that year, his fourth. Even though FIFA didn't recognise the feat, citing verifiability issues Messi does hold the Guinness World record for most goals scored in a calendar year. A record that will surely stay as it is for a good number of years.