Plural of ephemera; short-lived items, transient things, or mayflies (Ephemeroptera insects).
From Latin ephemerae/ephemera, from Greek ephemeros. English adopted both the Latin-style plural 'ephemerae' and the anglicized 'ephemeras.'
Collectors of 'ephemeras'—vintage tickets, pamphlets, and packaging—preserve the forgotten language of everyday history, showing that the most 'throwaway' things often tell the richest stories.
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