Nostalgia is a sentimental longing or wistful affection for the past, typically for a period or place with happy personal associations. It is a bittersweet emotion that often arises when reminiscing about cherished memories or experiences.
Interesting fact: The term “nostalgia” was coined in the late 17th century by a Swiss physician named Johannes Hofer. He used it to describe a condition observed in Swiss mercenaries, who experienced homesickness and longing for their native land while serving abroad. The word is derived from the Greek words “nostos” meaning “return home” and “algos” meaning “pain” or “ache.”