Why did the Swedish government ask John Amos Comenius to write school textbooks?

The government of Sweden invited John Amos Comenius to assist in the reform of its schools by writing a series of textbooks modeled on his earlier work, Janua Linguarum Reserata (The Gate of Tongues Unlocked).1

Comenius had gained widespread recognition for his innovative teaching methods, which sought to make learning more rapid, pleasant, and thorough by following the footsteps of nature rather than relying on inefficient, pedantic grammatical instruction. By creating textbooks that presented useful facts about the world in both Latin and the vernacular side by side, he allowed students to identify words with actual things, a method that had already achieved significant fame across Europe. The Swedish government sought to leverage this expertise to modernize their educational system.1