Support & corrections

Before you write

Many apparent errors are explained by how the data is built. Please skim these first — they often answer the question:

Figures are matched from public records by name, so a small share can be incomplete or, rarely, misattributed. If after checking those pages something still looks wrong, a correction with as much detail as possible — the person or page, the specific value, and ideally the correct figure and a public source — is the fastest way to get it fixed. You can also report a bug or suggest a feature or data source.