What if the Black Death had gone differently?

Plague kills a third of Europe in six years, breaking the old balance of land and labour.

If it had gone differently: Serfdom and a land-rich, labour-poor order roll on; wages stay flat and the church's authority unshaken.

1. 1492Columbus reaches the Americas, The Atlantic stays a barrier for generations; Europe's empires grow east, not west.
2. 1517The Protestant Reformation, Western Christianity stays a single church; no confessional map of Europe forms.
3. 1600The Scientific Revolution, Natural philosophy stays deferential to the ancients; no method, no acceleration.