Abraham Lincoln and his administration restricted constitutional liberties during the Civil War, including freedom of speech and freedom of the press.
A Free-Speech Fix for Our Divided Campuses - WSJ
Schenck v. United States (1919) - The Free Speech Center
Forgotten insurrection clause of 14th Amendment used to force GOP
Communist Party of the United States - The Free Speech Center
Abraham Lincoln - The Free Speech Center
Confederate States of America History, President, Map, Facts
Free Speech on Trial
The First Amendment, Censorship, and Private Companies: What Does
The Palestine Exception to Free Speech: A Movement Under Attack in
The First Amendment doesn't guarantee you the rights you think it
May 14, 1960: Firehoses Confront Free Speech in S.F. City Hall
Free Speech American Civil Liberties Union
The First Amendment Constitution Center
Free speech rights weaponized to silence students on US campuses