Dies ist, was Merkel tat, indem sie 13 Jahre lang im Amt blieb, was sie zu am längsten amtierenden deutschen Bundeskanzlerin seit Helmut Kohl (1982-1998) macht.
That is what Merkel has done by remaining in office for 13 years, making her the longest-serving chancellor since Helmut Kohl held the post, from 1982 to 1998.