Decades: 1560s BC 1550s BC 1540s BC 1530s BC 1520s BC - 1510s BC - 1500s BC 1490s BC 1480s BC 1470s BC 1460s BC
Significant People
... which to reduce carbon dioxide into carbohydrates. Van Neil's proposal was confirmed 20 years later by using the O18 isotope of oxygen as a tracer label to follow the fate ...