Estonian

The speakers of the two major historical languages spoken in Estonia, North and South Estonian, are thought by some linguists to have arrived in Estonia in at least two different migration waves over two millennia ago, both groups having spoken considerably different vernacular. Some linguists have classified South Estonian as another, separate Finnic language, rather than a variety of Estonian. Modern standard Estonian evolved in the 18th and 19th centuries based on the dialects of northern Estonia. During the Medieval and Early Modern periods, Estonian accepted many loanwords from Germanic languages, mainly from Middle Low German (Middle Saxon) and, after the 16th-century Protestant Reformation, from the Standard German language.

The oldest written records of the Estonian language date from the 13th century. The "Originates Livoniae" in the Livonian Chronicle of Henry contains Estonian place names, words and fragments of sentences.

The Estonian dialects are divided into two groups – the northern and southern dialects, historically associated with the cities of Tallinn in the north and Tartu in the south, in addition to a distinct kirderanniku dialect, Northeastern coastal Estonian. The northern group consists of the keskmurre or central dialect that is also the basis for the standard language, the läänemurre or western dialect, roughly corresponding to Lääne County and Pärnu County, the saarte murre (islands' dialect) of Saaremaa, Hiiumaa, Muhu and Kihnu, and the idamurre or eastern dialect on the northwestern shore of Lake Peipus. One of the pronunciation features of the Saaremaa dialect is the lack of the 'õ' vowel. A five-metre monument erected in 2020, marking the "border" between the vowels 'õ' and 'ö', humorously makes reference to this fact. South Estonian consists of the Tartu, Mulgi, Võro and Seto varieties. These are sometimes considered either variants of South Estonian or separate languages altogether. Also, Seto and Võro distinguish themselves from each other less by language and more by their culture and their respective Christian confession.

Although Estonian orthography is generally guided by phonemic principles, with each grapheme corresponding to one phoneme, there are some historical and morphological deviations from this: for example preservation of the morpheme in declension of the word (writing b, g, d in places where p, k, t is pronounced) and in the use of 'i' and 'j'. Where it is very impractical or impossible to type š and ž, they are replaced by sh and zh in some written texts, although this is considered incorrect. Otherwise, the h in sh represents a voiceless glottal fricative, as in Pasha (pas-ha); this also applies to some foreign names. Modern Estonian orthography is based on the "Newer Orthography" created by Eduard Ahrens in the second half of the 19th century, which was based on Finnish orthography. The "Older Orthography" it replaced was created in the 17th century by Bengt Gottfried Forselius and Johann Hornung, and based on standard German orthography. Earlier writing in Estonian had, by and large, used an ad hoc orthography based on Latin and Middle Low German orthography. Some influences of the standard German orthography – for example, writing 'W'/'w' instead of 'V'/'v' – persisted well into the 1930s.