When did harry potters mother and fater met first?

Harry Potter's parents, James Potter and Lily Evans, first met on the Hogwarts Express during their first year at Hogwarts School of Witchcraft and Wizardry in the 1970s. They became friends and later fell in love during their time at Hogwarts. Their relationship blossomed as they navigated their school years together, ultimately leading to their marriage before the events of the series.