Early childhood education (ECE) spaces within settler-colonial societies operate as sites of violence and oppression whereby non-conformity to white, rational, ableist, cisgender norms is weaponised as developmental deficits. In this paper, we refer to the refusals of non-dominant ways of knowing as forms of epistemic injustice (Fricker 2007). We describe the foundational underpinnings of ECE throughout the twentieth century in Ontario, Canada and trace how normative ideas of children, educators, education, and childhood developed through a largely positivist, developmental orientation. Ultimately, we call for epistemic justice (Fricker 2007) as an emancipatory way forward in post-secondary ECE programmes.