1850 CEFace-to-Face InterviewsEnumerators conducted in-person interviews with respondents, often going door-to-door1900 CETeam completeA round investment1950 CELaunchParty2000 CE2010 CE2020 CEUntitled Timeline ChartLabelhallo!hallo!LabelFace-to-Face InterviewsEnumerators conducted in-person interviews with respondents, often going door-to-doorTeam completeA round investmentLaunchParty