chronogram

Etymology
From, from +.

Noun

 * 1) A sentence or inscription whose letters, when interpreted according to a system (such as Roman numerals) in which letters correspond to numeric values, stand for a particular date (usually the date of inscription) when rearranged.
 * 2)  A phylogenetic tree that has branch spans proportional to evolutionary time.

Translations

 * Catalan: cronograma
 * Chinese:
 * Mandarin: 紀年銘
 * French:
 * German: Chronogramm
 * Japanese: クロノグラム
 * Russian:
 * Spanish: