Nicholas Callan and experimental philosophy under Dr. Cornelius Denvir. He introduced the experimental method into his teaching, and had an interest in electricity and magnetism. Callan was ordained a priest in 1823 and went to Rome to study at Sapienza University, obtaining a doctorate in divinity in 1826. While in Rome he became acquainted with the work of the pioneers in electricity such as Luigi Galvani (1737–1798) who was a pioneer in modern obstetrics and Alessandro Volta (1745–1827) who is known especially for the development of the electric battery. In 1826, Callan returned to Maynooth as the new Professor of Natural Philosophy
Alessandro Striggio of his music in Europe in the late 16th century. His influence was especially large in England; this may have been due in part to his 1567 visit, and also may have been related to the activities of Alfonso Ferrabosco, the Italian madrigalist who was resident in England for most of his life, and helped popularize the Italian style there. Alessandro Striggio Alessandro Striggio (c. 1536/1537 – 29 February 1592) was an Italian composer, instrumentalist and diplomat of the Renaissance. He composed numerous madrigals as well as dramatic music, and by combining the two, became the inventor of madrigal comedy.