Why is the date of publishing an important quality to evaluate when checking ur sources

Match each poem with the subculture or counterculture from which it came. hip–hop counterculture feminist counterculture beat generation a. "pay attention, here's the thick of the plot/i pulled up to the corner at the end of my block/and that's when i saw this beautiful girly–girl walkin'/i picked up my car phone to perpetrate like i was talkin'" (jazzy jeff and the fresh prince) b. "for no church told me/no guru holds me/no advice/just stone/of new york" (jack kerouac) c. "you fit into me/ like a hook into an eye/a fish hook/an open eye" (margaret atwood)