What has helmuth hüberner accomplished

After Hübener finished middle school in 1941, he began an apprenticeship in administration at the Hamburg Social Authority (Sozialbehörde). He met other apprentices there, one of whom, Gerhard Düwer, he would later recruit into his resistance movement. At a bathhouse, he met new friends, one of whom had a communist family background and, as a result, he began listening to enemy radio broadcasts. Listening to these was then strictly forbidden in Nazi Germany, being considered a form of treason. In the summer of that same year, Hübener discovered his older half-brother Gerhard's shortwave radio in a hallway closet. It had been given to Gerhard early that year by a soldier returning from service in France[2]. Helmuth began listening to the BBC on his own, and he used what he heard to compose various anti-national socialist texts and anti-war leaflets, of which he also made many copies. The leaflets were designed to bring to people's attention how skewed the official reports about World War II from Berlin were, as well as to point out Adolf Hitler's, Joseph Goebbels's, and other leading Nazis' criminal behaviour. Other themes covered by Hübener's writings were the war's futility and Germany's looming defeat. He also mentioned the mistreatment sometimes meted out in the Hitler Youth.

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.