Since Time ImmemorialIn Since Time Immemorial Yanna Yannakakis traces the invention of Native custom, a legal category that Indigenous litigants used in disputes over marriage, self governance, land, and labor in colonial Mexico. She outlines how, in the hands of Native litigants, the European category of customsocial practice that through time takes on the normative power of lawacquired local meaning and changed over time. Yannakakis analyzes sources ranging from