May 6, 1998: Kerry Wood ties major league record with 20

Baseball history unpacked, May 6 - Bleed Cubbie Blue

May 11, 2016: Nationals' Max Scherzer ties MLB record with 20 strikeouts – Society for American Baseball Research

Kerry Wood's 20 Strikeout Game

May 6, 1998: Kerry Wood's 20 strikeout game

Kerry Wood's 20 Strikeout Game

20 Years Later: A look back at Kerry Wood's 20-K game

July 31, 1998: Cubs hammer four homers into the wind as rookie Kerry Wood improves to 8-0 at Wrigley Field – Society for American Baseball Research

Kerry Wood's 20 Strikeout Game

How to watch Strikeout Saturday: Classic 20-K games on ESPN - ESPN

White Sox beat Cubs 3-2 in Kerry Wood finale - The San Diego Union-Tribune

May 6 in sports history: No knock on masterful Wood

Feeling at Home at Wrigley, Kerry Wood Returns to Cubs - The New York Times