It was a historic moment. = an important moment in history. It is a historical novel. = a novel about a period in history. Compare ‘a historic event‘ (an event that changed history) and ‘a historical event’ (such as a parade in historical costumes) Read more >>>
Affect is usually a verb, and effect is usually a noun. to affect = to have an effect on someone or something. His words affected her deeply. His words had a powerful effect. Less common uses: How can we effect a change in people’s attitudes? (Here, effect is a verb meaning ‘make happen’.) In psychollogy, … Continue reading affect and effect Read more >>>