Paper Magic: The Gathering card sets were originally printed in English only. The Legends expansion marked the first internationalized printing of a Magic set, in Italian. Further languages were added over the years until the current set of languages was reached: English, Chinese Simplified, Chinese Traditional, French, German, Italian, Japanese, Korean, Portuguese (mostly for the Brazilian market), Russian, and Spanish.
Note that the sets below are ordered by their English release date, but that the schedule for non-English releases was somewhat different. For example, the Italian, French, and German Revised Edition were released in late 1994, followed by the Italian version of The Dark in early 1995, and Legends in mid-1995. This is the opposite of the order those two expansions appeared in English. Today, all language printings are released at the same time. Still, all products aren't necessarily released in every language.
A small number of Prerelease promos were printed in other languages: Latin, Classic Greek, Sanskrit, Arabic and Hebrew. A Judge Gift card of Elesh Norn, Grand Cenobite uses Phyrexian scripture. Unhinged 's Latin Pig is written in Pig Latin.