Issachar

The arrangement whereby one person supports the other who learns Torah, and the reward is shared between the two of them, has come to be known as a “Yissachar-Zevulun” partnership.

The incident involving the mandrakes (dudaim) which Reuben, the eldest son of Jacob, found in the field "during the time of the wheat harvest"--recounted in Genesis 30:14-18--occurred on the fifth of Sivan of the year 2197 from creation (1568 BCE).

The final rectification of Cain came through Issachar, Leah’s fifth son.