1901–1923 CE · blood-group, insulin and clinical-use milestones · Europe · Medicine
Landsteiner’s blood-group work enabled safer compatibility testing, while the Toronto insulin team’s extraction, purification and clinical trials transformed type 1 diabetes from a rapidly fatal disease into a treatable chronic condition.
Atlas dossier · World WarsFree device narration · synchronized English captions · transcript available
Why it matters
Landsteiner reported the principal human blood groups in 1901; safer transfusion still required compatibility testing, cross-matching, storage and organised blood services. The 1930 Nobel award records the importance of the discovery, not a claim that one experiment created modern transfusion practice.
Nobel Prize: Karl Landsteiner facts ↗Banting and Best’s experiments were conducted in Macleod’s Toronto laboratory, while Collip’s purification work helped make clinical use possible. Leonard Thompson received the first successful course in 1922. The 1923 Nobel award went to Banting and Macleod, who shared their prize money with Best and Collip; the dossier names the wider team and the patient rather than turning the work into a two-man discovery story.
Nobel Prize in Physiology or Medicine 1923 ↗A visual presentation accompanying this entry. Read each image’s attribution to distinguish archival records, later depictions and reconstructions.
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Karl Landsteiner Gedenktafel Portrait KL Privatuniversität Krems.jpg — Mfchris84; CC0; via Wikimedia Commons
Source and reuse terms ↗ · Read the licence ↗Interpretation note
This dossier distinguishes the event’s basic chronology from later arguments about meaning, responsibility and legacy. When comparing religious, national, Indigenous or scholarly interpretations, consult the primary and institutional sources above alongside peer-reviewed historical work.
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