Noun + を境に(して)

[From the turning point of; since; marking the boundary of]

Connection: Noun (event/time) + を境に(して)

Usage: Indicates that a certain event or point in time serves as a dividing line, after which things changed significantly. The change can be positive or negative.

Nuance: Emphasizes that there was a clear "before and after" — a distinct transformation occurred.

Examples:

あの事故を境に、彼の性格が変わった。(Since that accident, his personality changed.)

結婚を境に、彼女は仕事を辞めた。(With her marriage as the turning point, she quit her job.)

2020年を境に、リモートワークが急速に普及した。(Starting from 2020 as a turning point, remote work spread rapidly.)