Anson is also given the credit, or the blame, for setting the stage for the longest-lasting version  of the infamous " color line " resulting in African-Americans being barred from major league baseball. In an August 10, 1883, exhibition game against the then-independent Toledo Blue Stockings, who would before the next season join the American Association, the highly bigoted Anson refused to field his team as long as Toledo's catcher Moses Walker , who was black, was in the lineup; Anson claimed that Walker was ineligible to play because the rules then in effect permitted only "gentlemen" to play and, according to Anson, Walker as a black person was incapable of satisfying the definition of a "gentlem[a]n." The umpires disagreed and threatened both to grant the Blue Stockings a victory by forfeit and to deprive Anson and his team of their share of the day's ticket sales unless Anson and his team took the field.  Anson relented and the game went on with Walker in the Toledo lineup, but in an 1884 game against Toledo, by now affiliated with the AA and playing as the Mudhens, Anson held his line and insisted that the arrangements for the game include a provision excluding black players from both teams' lineups. By the 1897 season, the leagues adopted an agreement that neither they nor their minor-league affiliates would not admit black players,  establishing a state of racial apartheid in professional baseball for the next half-century.
While personality and intelligence may be the seeds of impostorism, it needs a certain type of environment in which to sprout (or, shall we say, fester). Marilyn Puder-York, a clinical psychologist and executive coach, frequently treats high-achieving clients with aspects of IP and sees a common element in their background: parents who placed outsize emphasis on their academic credentials. “They were afraid of not being good enough, of being abandoned in some way by a family who wanted a successful child,” she says. “Their ambition was driven by a desire to avoid shame.”