 Whereas it was widely believed that Croatian was only standardized around the time of the Illyrian movement and Ljudevit Gaj, Brozović argued that the standardization began around 1600 and greatly developed around 1750.However, this Brozović's article also faces criticism due to the fact that "in the 18th century, there was no standard language (’überdachende’ sprachliche Entität), which would roof Kajkavian and Shtokavian".In other words, the major standardization activities took place only in the 19th century.