The World Series is not a one‑time event but Major League Baseball’s championship series, played almost every year since 1903 in late October and early November.

Quick Scoop

  • The first modern World Series was held from October 1–13, 1903, between the Boston Americans (now Red Sox) and the Pittsburgh Pirates.
  • Since then, the World Series has been scheduled at the end of each MLB season, typically starting in the last week of October and sometimes running into early November.
  • The series has been held annually except for a few years, such as 1904 (league dispute) and 1994 (players’ strike).

If You Meant a Specific Year

Your question “when was the world series” is a bit open‑ended, so here are two common interpretations:

  • Historical origin: 1903, with the first World Series running October 1–13.
  • General timing each season: Late October into early November every year as MLB’s postseason finale.

If you had a particular year or team in mind (for example, “when was the 2023 World Series?”), say which year and it can be pinned down to exact dates.

Information gathered from public forums or data available on the internet and portrayed here.