1 Precursors and the Beginning of an Applied Psychology for Business and Industry 2 Early Contributors to the Science and Practice of Industrial Psychology 3 Four Persistent Themes Throughout the History of I-O Psychology in the United States 4 I-O Psychology around the World: A Snapshot of Historical Roots 5 Influence of Formal and Informal Organizations on the Development of I-O Psychology 6 A History of Psychology Applied to Employee Selection 7 A Contemporary History of Job Analysis in the United States 8 A History of Performance Management 9 A Historical Review of the Study of U.S. LGBTQ Employees’ Workplace Experiences 10 The Dubious Legacy of Early "O"-Side Interventions 11 The Study of Work Motivation in the 20th and 21st Centuries 12 Leadership: A Critical Historical Analysis of the Influence of Leader Traits 13 Work Teams in Organizations: A Historical Reflection and (New) Lessons Learned 14 The Evolution of Worker Well-Being and Work-Life Issues 15 Reflections on the Importance of Context (with the benefit of 2020 hindsight)