Redirected from 823 BC
Decades: 870s BC 860s BC 850s BC 840s BC 830s BC - 820s BC - 810s BC 800s BC 790s BC 780s BC 770s BC
Significant People
... O18 isotope of oxygen as a tracer label to follow the fate of oxygen atoms during photosynthesis. Light-dependant reaction The first stage of the photosynthetic system ...