In this first part, we lay the groundwork for understanding Agile. Weβll trace a brief history of how Agile came to be and examine the Agile Manifesto β the seminal document that crystallized Agile values and principles. From there, we discuss the key principles and cultural values that differentiate Agile from traditional ways of working. This part establishes βwhyβ Agile exists and what it fundamentally means to be Agile.