In 1969, he drew up the report proposing the expulsion from the party of the Manifesto group. In 1984, after Berlinguer's death, Natta was elected as party secretary.
1969 is the last year of the 1960s.
1969 is indeed the last year of the 1960s. 1970 is the year afterward.
( z1 year :mod ( z2 last ) :part-of ( z3 date-entity :decade 1960 ) :domain ( z4 date-entity :year 1969 ) )