be brought to have a lock of hair cut by the Rebbe as part of their first haircut. Rabbinic controversy Some rabbis, namely the Chasam Sofer and the Shoel Umeishiv, have opposed the celebration of or the practice of certain customs observed on Lag BaOmer. These halachic scholars pointed out that the way Lag BaOmer is observed differs from the traditional manner in which anniversaries of deaths are observed, as Lag BaOmer is observed in a festive way, whereas usually a yahrtzeit is marked by observances that "bring out the solemn and serious nature of the day". Other issues raised include the practice of throwing clothes into bonfires, which is perceived as wasteful, the fact that the holiday has not been celebrated by earlier sages, and the prohibition of establishing holidays. Nevertheless, these authorities did not ban the holiday. Other rabbis responded to the aforesaid opposition by explaining that it has been observed by many great rabbis and that expensive clothes are never burned. They relate what happened on the day of Rabbi Shimon bar Yochai's death as evidence that the day is very holy and should be celebrated. Zionism In modern Israel, early Zionists redefined Lag BaOmer from a rabbinic-oriented celebration to a commemoration of the Bar Kokhba revolt against the Roman Empire (). According to work published by Yael Zerubavel of Rutgers University, a number of Lag BaOmer traditions were reinterpreted by Zionist ideologues to focus on the victory of the Bar Kokhba rebels rather than their ultimate defeat at Betar three years later. The plague that decimated Rabbi Akiva's 24,000 disciples was explained as a veiled reference to the revolt; the 33rd day when the plague ended was explained as the day of Bar Kokhba's victory. By the late 1940s, Israeli textbooks for schoolchildren painted Bar Kokhba as the hero while Rabbi Shimon bar Yochai and Rabbi Akiva stood on the sidelines, cheering him on. This interpretation lent itself to singing and dancing around bonfires by night to celebrate Bar Kokhba's victory, and playing with bows and arrows by day to remember the actions of Bar Kokhba's rebel forces. This interpretation of the holiday reinforced the Zionist reading of Jewish history and underscored their efforts to establish an independent Jewish state. As Benjamin Lau writes in Haaretz: This is how Lag Ba'omer became a part of the Israeli-Zionist psyche during the first years of Zionism and Israel.