Chancellor Angela Merkel celebrated the renaissance of Jewish life in Germany but denounced the “disgrace” of increasingly open anti-Semitism and racism as she marked the 70th anniversary Tuesday of the country’s main Jewish group. The Central Council of Jews was founded in 1950 to represent Jews who had survived the Nazi Holocaust. Noting that many Holocaust survivors couldn’t imagine a future in Germany, she said the council originally was envisioned as a provisional entity to help them emigrate.