The Cyrillic Alphabet is an example of cultural diffusion because The Russians adopted it from the Byzantines.
The Russians created it without outside influence.
The Russians used it in their churches.
The Russians spread it to the Mongols.

The Russians spread it to the Mongols.

Explanation:

The definition of cultural diffusion is the spread of the beliefs and social activities of one culture to different ethnicities, religions, nationalities, etc.

- "schenck v. united states, case in which the u.s. supreme court ruled on march 3, 1919, that the freedom of speech protection afforded in the u.s. constitution's first amendment could be restricted if the words spoken or printed represented to society a “clear and present danger.” "

- speech aimed to potentially create danger could be banned.

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