Ishango Bone Perhaps the earliest known recording of data (19,000 BC). data collection self-tracking Similar projects to Ishango Bone A Red Record A statistical analysis spearheaded the anti-lynching movement in the United States. Khipu A system of knotted cords used by the people in the Andes to record and store information. Lebombo Bone A 43,000 year old bone that may have been used as a menstrual tracker. The Central Database of Shoah Victims' Names A digital archive to preserve the names and biographical information of Jewish Holocaust victims murdered during years of the Nazi regime from 1933-45. PigeonBlog Using homing pigeons with GPS-enabled backpacks to gather and communicate air pollution data. r/datahoarder A Reddit community around archiving digital information. Back to all projects.