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Scientists began using body temperature to determine a person's time of death. This practice began in the late 1800s.
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After many years of close observation, German biochemist Fredrich Miescher discovers that there are different strands of DNA.
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An Austrian doctor, Karl Landsteiner discovers different blood groups, making bloos transfusions safe.
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Alec Jeffreys invents the very first DNA test.
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.