1.03 20th Century Timeline Review Guide
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Last updated 1:57 PM on 3/17/26
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5 Terms
1
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1900-1920
ABO Blood Groups (1901)
2
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1921-1940
Insulin (1921)
Penicillin (1928)
3
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1941-1960
Polio Vaccine (1955)
Kidney Dialysis Machine (1943)
Heart-Lung Machine (1953)
4
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1961-1980
CT Scan (1972)
In Vitro Fertilization (1978)
AED (Automated External Defibrillator) (1965)
5
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1981-2000
MRI (1980s)
Laparoscopic Surgery (1987)
Stem Cell Transplant (1988)
