Calendar idioms

Idioms related to calendars include: vivid, vicissitudes, unknown origin, long history, timeless and so on.

This idiom is explained as follows:

Vivid: vivid: clear and vivid. Appear or reappear in front of your eyes. Refers to a clearly visible distant object or scene, or the past scene is clearly presented to the eyes.

Suffering from many vicissitudes: describe suffering and many changes.

Unknown origin: refers to the unknown origin, process or background of people or things.

Long history: I have experienced many difficult days.

Lasting forever: after a long time, it has not declined and become obsolete, but has become newer and better. It means that a thing will not become old and rotten with the passage of time, but will be more dynamic, valuable and better than the new one.