Slovak language
The standard Slovak language, as codified by Ľudovít Štúr in the 1840s, was based largely on Central Slovak dialects spoken at the time. Eastern dialects are considerably different from Central and Western dialects in their phonology, morphology and vocabulary, set apart by a stronger connection to Polish and Rusyn. At the beginning of the 20th century, there was an unsuccessful attempt to standardise an East Slovak language.