Today’s #kanji is 昔 which is listed under the radical of #ひらび（日）. It is a compound ideograph made of 龷 (“piling up”) and 日.
Meaning: ancient times, old days
昔日（セキジツ）: old times, former times
今昔（コンジャク）: (the) past and (the) present
昔（むかし）: ancient times, old days
昔話（むかしばなし）: an old tale, a legend, folklore
大昔（おおむかし）: ancient ties, the distant past, a long time ago
一昔（ひとむかし）: an age (ago), a generation (ago)