Until the advent of photography, watercolour painting was the best means of documenting the natural world, news events and wars.

Only with the advent of photography in the nineteenth century did it become possible to create anything like an objective visual record of what a play looked like on stage.

In that almost cosy prospect the grades from dark to light would have been consistent with the mind's conjecture as endorsed, perhaps reinforced, by the advent of photography.

In all such instances, the advent of photography has become invaluable.

While photographers and others debated whether photography could be art, the advent of photography directly affected the roles and livelihoods of many traditional artists.