The human species may be more than 100,000 years old but the bulk of its numerical growth has come in just the last few decades: 2.6 billion of today's 5.6 billion people have been born since 1960.
The entire human species was born before 1960.
( z1 bear :ARG1 ( z2 species :mod ( z3 human ) :mod ( z4 entire ) ) :time ( z5 before :op ( z6 date-entity :year 1960 ) ) )