Migration is a natural part of living systems, and human history is no exception. Yet it remains one of the most debated public issues of our time.
Both people and borders move. Who is allowed to move, and who is granted rights, lies at the heart of how nations define belonging. In Germany and the United States alike, these debates have been deeply intertwined with evolving ideas of race and ethnicity.
These timelines trace how citizenship and belonging have been constructed, challenged, and redefined through laws, social movements, global events, and cultural works — and how those histories continue to shape the present.
In the 1980s, two professors in West Germany wrote a thesis paper that became known as the Heidelberg Manifesto. In this manifesto, they warned against the supposed foreign infiltration of German culture and language and called for the preservation of the “German people.” The theses were criticized as racist and marked the first scientific legitimization of racism in the Federal Republic of Germany since 1945.