Collocations for watershed - noun

important, major, significant | cultural, historical, political

be, mark, represent | reach

divide sth
Darwin''s theory of evolution was a watershed dividing the old way of thinking from the new.

~ between
The 19th century marked a watershed between the country''s agricultural past and its industrial future.

~ for
The granting of the vote represented a watershed for the rights of women.

~ in
With the strike, a historical watershed in the development of the trade union movement was reached.