Which of the following was not a contribution of Islamic civilization? A - Arabic alphabet

D - universities where scholars of different cultures study

C - translation of ancient texts into Arabic

B - civil service system

B - Civil Service System

Explanation:

Wikipedia states A, C and D happened at some point during the Medieval era

- "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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president franklin roosevelt supported the tva as part of his first new deal measures approved by congress in 1933. this new agency was designed to control floods, produce electric power, and improve the lives of people living in the tennessee valley. the tva accomplished many of these goals despite problems.