It catalyses the light-dependent activation of several photosynthesis enzymes and constitutes the first historical example of a thiol/disulfide exchange cascade for enzyme regulation.

They are the first historical example of natural units, i.e. units of measurement designed so that certain fundamental physical constants serve as base units.

One historical example involved spinning a coin with a short length of plastic wire.

A historical example will clarify this and provide a more precise case of this application.

He argued vehemently, with many historical examples, that those with power always oppress those without it.