The Color Line
Two leagues, one game, kept apart on the page.
Each line is a club's life. The top band is the Negro Leagues — twelve clubs of record. The bottom is Major League Baseball — its sixteen 1947 franchises, ordered top-to-bottom by the date each one signed its first Black player. The vertical red line is the moment the barrier fell. The dim segment of every MLB row is what the team had been for a half-century before.
Sixteen teams, sixteen first days.
The chart compresses it. The list spells it. Three teams in 1947. Then a two-year pause. Then six in a single month in 1954. And then — a long, thin tail.
Who held the record, and who actually did.
When Major League Baseball merged the Negro Leagues statistical record into its own books, the leaderboard rearranged itself. The names on the left held those records for most of the century; the names on the right had earned them already.
The door opened. The pipeline did not.
In 1947 there were six Black players on major-league rosters. By 1956 the count peaked at twenty — 3.6 % of the league. It never went higher. By 1975 it had fallen back to twelve. The door opened once; it did not open wide.
When MLB updated its books in May 2024, it did so by quietly elevating roughly 2,300 careers from leagues that had been declared "major" only four years earlier. Josh Gibson, who had been dead for seventy-seven years, became the holder of the single-season and career batting average records, the career slugging record, the career OPS record, and the single-season OPS record. The previous holders — Cobb, Ruth, Bonds — kept their seasons. They lost their place on the page.
This report does not relitigate that decision. It treats it as done, and asks the smaller, harder question of what changed and what it cost — a half-century of seasons unreported, of names not in the bookkeeping, of records held by men dead before the league that finally counted them had heard their last at-bat.
This series is called One Hundred Years. The Negro Leagues did not get one hundred years. They got forty — and then the door opened and the leagues died so the players could live.
The next page, The Lost Seasons, models the careers that were never officially played: how many seasons each man would have had in the major leagues if the door had opened the year he turned twenty-one. The page after that follows the pipeline — the percent of the league that was Black, decade by decade, from 1947 to today. Read in order or out.