A cardinal-nephew is a cardinal elevated by a pope who is his relative. The practice of creating cardinal-nephews originated in the Middle Ages and reached its apex during the 16th and 17th centuries. It is central to the etymology of the word nepotism , which appeared in the English language circa 1670. A pope without a cardinal-nephew was the exception from the Avignon Papacy until Innocent XII banned the practice with his 1692 anti-nepotism papal bull Romanum decet Pontificem . From 1566 until 1692, a cardinal-nephew held the curial office of Superintendent of the Ecclesiastical State. The curial office as well as the institution of the cardinal-nephew declined as the power of the Cardinal Secretary of State increased and the temporal power of popes decreased in the 17th and 18th centuries. Notable cardinal-nephews include popes such as Julius II, as well as the saints Charles Borromeo and Guarinus of Palestrina. ( Full article... )
| | Nettie Stevens (July 7, 1861 – May 4, 1912) was an American geneticist who discovered sex chromosomes, which later became known as the X and Y chromosomes. Using observations of insect chromosomes, Stevens discovered that, in some species, chromosomes are different between the sexes and when chromosome segregation occurs in sperm formation; this difference leads to outcomes of female versus male progeny. Her discovery was the first time that observable differences of chromosomes could be linked to an observable difference in phenotype or physical attributes (i.e., whether an individual is male or female). Stevens was one of the first American women to be recognized for her contribution to science. Most of her research was completed at Bryn Mawr College, where she expanded the fields of genetics, cytology, and embryology. This photograph of Stevens was taken in the 1900s. Photograph credit: Carnegie Institution of Washington; restored by Adam Cuerden Recently featured: |