[2] Later, as the Nazi movement spread, because he was Jewish,[1] he was arrested as a political prisoner and held in Buchenwald as inmate number 20124 in Block 20.
He was released from Buchenwald on 28 April 1939 after his family had made plans to emigrate to Great Britain.
[4] Guttmacher approved Margulies' idea to create a safer type of IUD using plastic.
[1] It was made of thermoplastic and introduced in a thin tube and then inserted with a plastic plunger.
[1] After it was expelled from its tubing, the plastic IUD retained its shape inside the uterus.