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Today is the Cyrillic alphabet day, the day when we remember that the Cyrillic script originates in Czechia and was devised by two Greek missionaries spreading Middle-East religion among the Slavs.
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It then spread to Bulgaria and only after that further East.
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And by Czechia (today) I really mean the Great Moravia (in the 9th century), the capital being Veligrad which ca 5 hours by bike from Brno depending on your fitness. en.wikipedia.org/wiki/Great_Moravia