Das stimmt, in einem englischen Text habe ich nie "AC" mit der Bedeutung "Ante Christum" oder "After Christ" gesehen.
In der englischen Wikipedia wird die Auflösung "Ante Christum" erst ganz am Ende erwähnt:
AC
From Wikipedia, the free encyclopedia
AC or Ac usually refers to:
Air conditioning, the process of cooling air
Alternating current, a type of electrical current where the current repeatedly changes direction
Air Canada, A Canadian airline
Science
Acetyl, a functional group in chemistry
Acromioclavicular joint (AC joint), the shoulder junction between the scapula and the clavicle
Actinium, a chemical element
Adenylate cyclase, a lyase enzyme
Alternating current, a type of electric current AC power, a net transfer of energy over a complete cycle of the alternating current waveform
Anticipated convection, convective outlooks issued by the U.S. National Weather Service
Artificial consciousness, a field related to artificial intelligence and cognitive robotics
Axiom of choice, a mathematical set theory concept
Chemotherapy regimens, adriamycin and cyclophosphamide, a chemotherapy regimen used to treat breast cancer
Altocumulus, a medium level cloud type
Places
Aachen (district) (vehicle registration code AC), a district in Germany
Acre (state), a state in Brazil
Atlantic City, New Jersey, a city in New Jersey, United States
Computing
AC (complexity), a hierarchy of complexity classes found in circuit complexity
.ac, Internet top-level domain name for Ascension Island
.ac (second-level domain), Internet second-level domain used to denote academic institutions in many countries
Authorization certificate or attribute certificate, a digital permission to use a service or resource
Job titles / ranks
A person appointed Companion Of The Order of Australia
Aelod y Cynulliad, the title for Members of the National Assembly for Wales
Aircraftman, an air forces rank
Assistant Commissioner of Police of the Metropolis, a rank in London's Metropolitan Police
Entertainment
AC, the name of the ultimate computer at the end of time in Isaac Asimov's The Last Question
A.C. Newman, solo stage-name for Canadian musician Carl Newman
A.C. Slater, character in the American sitcom Saved by the Bell
AC Comics, a comic book publisher established in 1969
Adult contemporary music, a genre description used mainly in radio broadcasting
After Colony, an alternate timeline in the Gundam metaseries for the universe of Gundam Wing
American Capitalist, the third studio album from American rock band 5FDP
Anal Cunt, an American musical group
Armor Class, a combat-related parameter in the Dungeons & Dragons role playing game system
Video games
Ace Combat, a series of combat flight simulator games
Armored Core, a series featuring the eponymous robotic fighter under the player's control
Asheron's Call, a fantasy massively multiplayer online role-playing game
Assassin's Creed, a series of historical sci-fi action/adventure games
Assault Cube, a free first-person shooter with pseudo-realistic gameplay, optimised for lower-end computers
Animal Crossing, a life simulation game made by Nintendo
Batman Arkham City
Organizations
AC Cars, a British specialist automobile manufacturer
AC – The Danish Confederation of Professional Associations, an umbrella organisation for several Danish trade unions
AC Transit, a regional public transit agency in the San Francisco Bay Area
Action Congress, a political party in Nigeria
Ad Council Japan (AC Japan), an organization that distributes Japanese public service announcements
Air Canada (IATA code), an airline company
Alternative for Change (Alternativa por el Cambio), a political party in Nicaragua
Associated Content, an online publisher and distributor of original content
Australia Council
Ayala Corporation (Philippine Stock Exchange symbol), a holding company
Civic Alliance Foundation (Alianţa Civică), a Romanian non-governmental organization
Coast Alliance (Alianza Costeña), a former regional political coalition in Nicaragua
People
A. C. Green, retired professional basketball player
Other uses
Ac (rune) (ᚪ), a rune of the Anglo-Saxon fuþorc and a continuation of the Elder Fuþark ansuz
Acre, a unit of area with the symbol ac
Appeal cases
Anarcho-capitalism, a form of free-market anarchism
Ante Christum or A.C., a Latin term meaning "before Christ"
Anthrocon, the largest furry convention in the world held in Pittsburgh, Pennsylvania
Assessment center, a process to evaluate candidates for a job
Average cost, in economics
