List of strong chess tournaments

This article depicts many of the strongest chess tournaments in history.
The following list is not intended to be an exhaustive or definitive record of tournament chess, but takes as its foundation the collective opinion of chess experts and journalists over the strongest tournaments in history.
Events that merit inclusion have been largely judged according to the strength (and relative strength in depth) of their participants. Other factors were taken into account, but have less influence; for example the quality of chess played, the closeness of the contest and the number of world top 10 and/or 'big reputation' players who took part. Inevitably, this introduces a degree of subjectivity, but the vast majority of tournaments in the list range from FIDE Category 10 to FIDE category 21 and beyond.
The names of the tournament winners have been included next to the year and venue. Many of the tournaments have had books written about them and whilst these will be mostly out of print, they are occasionally available at online auction sites, second-hand specialist book shops etc.
No attempt is made at comparing the relative strengths of tournaments in the list, as this is, and continues to be, the subject of inconclusive debate amongst experts.
While events are listed in year order, they are not listed chronologically within the same year.