Why isn't Ilja Weinstein's Yahrzeit Exact?

We do not know the exact date of death of Ilja Weinstein. 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 Ilja Weinstein on 17 Kislev. If you know the exact date of death of Ilja Weinstein, contact us via the contact page. Be sure to include the url: https://eachofushasaname.org/person/6041/Ilja_Weinstein.html