Why isn't Sima Krupkin's Yahrzeit Exact?

We do not know the exact date of death of Sima Krupkin. According to Jewish tradition, if the exact date of death is not known, the yahrzeit of a person can be observed on any day, as long as it is that same day every year. Since that is the case, we observe the yahrzeit of Sima Krupkin on 14 Nisan. If you know the exact date of death of Sima Krupkin, contact us via the contact page. Be sure to include the url: https://eachofushasaname.org/person/3260/Sima_Krupkin.html