Alexandrine introduce phrasal accentuation, or rigorously observe the medial caesura, as in French." Common usage within the literatures of European languages is broader still, embracing lines syllabic, accentual-syllabic, and (inevitably) stationed ambivalently between the two; lines of 12, 13, or even 14 syllables; lines with obligatory, predominant, and optional caesurae. Although alexandrines occurred in French verse as early as the 12th century, they were slightly looser rhythmically, and vied with the "décasyllabe" and "octosyllabe" for cultural prominence and use in various genres. "The alexandrine came into its own in the middle of the sixteenth century with the poets of the Pléiade
Syllabic verse the most significant exceptions to this pattern are in Latvian, Lithuanian, and Serbian verse which, instead of stress, retain the older quantitative markers; that is, they use long and short syllables at the ends of hemistichs, rather than stressed and unstressed. Because all of these variables — line length, number and length of hemistichs, obligatory stress positions, etc. — differ in detail among various verse traditions; and because the individual languages supply words with different rhythmic characteristics; this basic metrical template is realized with great variety by the languages that use it, and a sequence of syllables that is metrical