Refusenik authorities to significantly increase the emigration quota. In the years 1960 through 1970, only about 3,000 Soviet Jews had (legally) emigrated from the USSR; after the trial, in the period from 1971 to 1980 347,100 people received a visa to leave the USSR, 245,951 of them were Jews. Refuseniks included Jews who desired to emigrate on religious grounds, Jews seeking to immigrate to Israel for Zionist aspirations, and relatively secular Jews desiring to escape continuous state-sponsored antisemitism. A leading proponent and spokesman for the refusenik rights during the mid-1970s was Natan Sharansky. Sharansky's involvement with the Moscow Helsinki Group helped
Yelena Bonner Although Bonner had joined the Soviet Communist Party in 1964 while she was working as a physician, only a few years later she was becoming active in the Soviet human rights movement. Her resolve towards dissidence was strengthened in August 1968 after Soviet bloc tanks rolled into Czechoslovakia in order to crush the Prague Spring movement. That event strengthened her belief that the system could not be reformed from within. At the Kaluga trial in 1970, Bonner and Sakharov met Natan Sharansky and began working together to defend Jews sentenced to death for attempting an escape from the USSR in