epigrams is a form of:

Chronology



noun — Plural: Chronologies
1.
(the arrangement of in the order in which they occurred, as in his geology) កាលវិទ្យា, កាលប្រវត្តិវិទ្យា, វិទ្យាសាស្ដ្រខាងកាលបរិច្ឆេទ
2.
(បច្ចេកទេស) លំដាប់ពេល, លំដាប់ព្រឹត្តិការណ៍, កាលប្រវតិ្តវិទ្យា
ENGLISH MEANING
noun — Plural: Chronologies
1.
The science which treats of measuring time by regular divisions or periods, and which assigns to events or transactions their proper dates.