Ishango Bone Perhaps the earliest known recording of data (19,000 BC). data collection self-tracking Similar projects to Ishango Bone Khipu A system of knotted cords used by the people in the Andes to record and store information. Dear Data Two information designers sending weekly hand-drawn data visualizations from their lives across the Atlantic. Lebombo Bone A 43,000 year old bone that may have been used as a menstrual tracker. Self An app to support researching our bodies, with all their messiness. A Red Record A statistical analysis spearheaded the anti-lynching movement in the United States. r/datahoarder A Reddit community around archiving digital information. Back to all projects.