Fig 1. Academic freedom index over time (1900–2015) in selected countries.
Notes: More information on the academic freedom index is provided in Table 1. Information for Germany is unavailable from 1945–1948.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.