Data

13,465,589 observations represented in our reference sources across 8 areas of life. This is source coverage, including published cohort totals; people may appear in more than one source. Every source is public and dated. We never keep a "top" list: those are survivors.

• Chess: monthly rating lists of the world federation, 2013 to 2025.
• Crowdfunding: monthly snapshots of Kickstarter projects, 2015 to 2025.
• Strength: every powerlifting meet of every lifter since 2010 (open data).
• Clinical trials: the public registry of clinical studies, 2008 to 2019.
• Companies: French company and accounts registries (Sirene, INPI), 2010 to 2019.
• Habits: public Stack Exchange archives, 2014 to 2022.
• Studies: French bachelor's degree cohorts of the ministry of higher education, followed to the degree.
• Weight: a published cohort of 278 982 UK patients followed to a normal weight (Fildes et al., 2015).

Next: open-source projects, UK companies, housing, music, migration, online courses. When a domain has no dated cohort yet, the verdict says so.