(EVENT REMEMBERED) [noun] [C] - something that you remember from the pastShe had vivid memories of her last trip to London when she got lost five times.That tune really brings back memories (= makes me remember past events).School is just a dim/distant memory for me now (= something I cannot remember very well).
Meaning of MEMORY in English
Cambridge English vocab. Кембриджский английский словарь. 2012