Did Neil Armstrong really land on moon in 1969?

Many of my friends tell me it wasn’t real, they just recorded the video on earth somewhere and showed it to the world. They did so because at that time, Russia succeeded first in 1969 to land (unmanned) on moon, and US didn’t like to stay back in competition (also cold war was goin on then).

I don’t know the truth, but I wonder if they succeeded to land on moon back in 1969, with the technology of that time, why then no man stepped on moon after then? and with technology that is now quite advanced as compared to that in 1969?