In April of 2019, at a digital learning conference, Manuel Espinoza spoke with educators, technologists, and annotation enthusiasts about R2L.d-undefined, .lh-undefined { background-color: rgba(0, 0, 0, 0.2) !important; }.d-undefined, .lh-undefined { background-color: rgba(0, 0, 0, 0.5) !important; }1Nate Angell and “the role that Hypothesis plays in human rights work.”