Dateline
来自Big Physics
Safin（讨论 | 贡献）2022年4月28日 (四) 07:27的版本 （建立内容为“Category:etymology == wiktionary == [https://en.wiktionary.org/wiki/dateline ref] From date + line. == etymonline == [https://www.etymonline.com/word…”的新页面）
wiktionary
From date + line.
etymonline
dateline (n.)
also date-line, 1880 as an imaginary line down the Pacific Ocean on which the calendar day begins and ends, from date (n.1) + line (n.). Never set by any treaty or international organization, it is an informal construct meant to coincide with a line 180 degrees (12 hours) from Greenwich, but it always has followed a more or less crooked course.
Meaning "line of text that tells the date and place of origin of a newspaper, article, telegram, etc." is by 1888.
