Mexican chemist <a href="https://en.wikipedia.org/wiki/Luis_E._Miramontes" id="mwgw" rel="mw:WikiLink" title="Luis E. Miramontes">Luis E. Miramontes</a> completes the synthesis of <a href="https://en.wikipedia.org/wiki/Norethisterone" id="mwhA" rel="mw:WikiLink" title="Norethisterone">norethisterone</a>, the basis of an early oral contraceptive.