Of course we all remember the clock chiming in Julius Caesar.
And then there are those rotating-number timekeepers aboard the Starship Enterprise -- of course (we assume) they would have digital displays in the 25th Century!!! But will mini-skirts and 60s hair-dos be back in inter-gallactic fashion?
anachronism (uh-NAK-ruh-niz-uhm) noun
1. The error of placing a person, object, custom, or event in the wrong historical period.
2. A person, thing, or practice that does not belong in a time period.
[From French anachronisme, from Latin anachronismus, from Greek anakhronismos, from ana-, (backwards) + khronos (time).]
"The show starts off with a video presentation showing Wakagi, playing a news anchor, reporting on 'recent' events in Japan such as Commodore Perry's visit to the country. This kind of anachronism is repeated halfway through the show."
-- Zal Sethna; 'Cha Cha Cha' From Osaka's Lilliput Army II Makes Audience Go 'Ha ha ha'; Daily Yomiuri (Tokyo, Japan); March 6, 2004.
"GSLP/Liberals expressed support for the remarks made by United Nations Secretary General Kofi Annan that colonialism is an anachronism inthe 21st century and the administering powers should work with the Committee of 24."
-- Gibraltar News; MercoPress (Montevideo, Uruguay); Feb 22, 2004.