Bob Costas suggested an introduction to the MLB records book that reads:
“It would read,” Costas said, “something to the effect of, ‘Baseball has the longest and richest history of any American sport. Over time, the game has gone through many changes, among them segregated, integrated, entirely day ball, mostly night ball, 16 teams and now 30 teams, train travel, cross-country air travel, higher mound, lower mound, reliance on relief pitchers, analytics, and significant among them the so-called steroids era in which many performances, especially by power hitters, were disproportionate to any other era in baseball history. Fans may want to take into account all those facts when considering the records reflected in the pages that follow.’”
Link: https://www.nytimes.com/2022/10/05/sports/baseball/aaron-judge-barry-bonds-asterisks-records.html?smid=nytcore-ios-share&referringSource=articleShare