Yad Vashem, Israel’s World Holocaust Remembrance Center, said Monday that it has recovered the names of five million Jews murdered in the Holocaust, a milestone it called “historic” in its decades-long mission to restore the identities of the six million Jews murdered by the Nazis. The announcement comes as the number of living Holocaust survivors able to give testimony dwindles, Yad Vashem said. Of about 200,000 Holocaust survivors living today, about half will no longer be with us in seven years, according to a calculation made by the Claims Conference earlier this year. The names of the remaining one million...