'Uses of Date of Birth' by Olatunji Olusanya critically examines the concept of Date of Birth as a pivotal factor in defining identity, legal recognition, and societal engagement. It delves into the implications of this singular piece of information on various aspects of life, from personal milestones and career opportunities to governance issues and systemic inequities. Through reflective commentary, the book highlights how a simple marker of time can shape access to rights, opportunities, and even personal destinies, particularly in the socio-political contexts of Nigeria and the UK.By situating the discussion within broader frameworks such as cultural norms, technological advancements, and global trends, the book raises important questions about the intersection of identity, justice, and equity. With a compelling mix of personal insights and societal critique, it challenges readers to reconsider the deeper meaning and significance of this seemingly ordinary aspect of human life.This work is an invaluable resource for readers seeking to explore how a single date-marked at birth-resonates through every stage of individual and collective existence, influencing decisions and systems in profound ways.