The African-European encounter was abrupt philosophically, not just historically

Evidence

The encounter between African and European had been abrupt, not so much in historical terms as in philosophical ones. The Western civilization that burst forth from its medieval quarantine prosecuted its racial sense of social order, its feudal habits of domination, with a vengeance. — Cedric J. Robinson, Black Marxism_ The Making of the Black…, 1429

Categorization

• XREF: Relevant to the reader’s question about why the encounter shaped the tradition’s character — an abrupt philosophical rupture rather than gradual contact.