This is according to the opinion of Rabbi Yehoshua that the mabul–great flood started on the 17th of Iyar. R’ Yehoshua is also the one who claims that the world was created in Nisan, and it is according to his opinion, that we recite Birkas HaChamah every 28 years, the first Wednesday after Tekufas Nissan–the vernal equinox.
Source: Rosh Hashanah 11b; Chizkunu, Bereishis 7:24.
𝐏𝐚𝐫𝐞𝐧𝐭𝐬 𝐀𝐧𝐧𝐢𝐯𝐞𝐫𝐬𝐚𝐫𝐲 𝐨𝐫 𝐁𝐢𝐫𝐭𝐡𝐝𝐚𝐲?
Present them with the gift of their heritage — their very own family tree!
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