Allegory of Divine Providence and Barberini Power (Cortona) Allegory of Divine Providence and Barberini Power (Cortona) The Allegory of Divine Providence and Barberini Power is a fresco by Italian painter Pietro da Cortona, filling the large ceiling of the grand salon of the Palazzo Barberini in Rome, Italy. Begun in 1633, it was nearly finished in three years; upon Cortona's return from Venice, it was extensively reworked to completion in 1639. The Palazzo, since the 1620s, had been the palatial home of the Barberini family headed by Maffeo Barberini, by then Urban VIII, who had launched an extensive program of refurbishment of the city with art and architecture.
Piazza (web service) answers and viewing more detailed statistics on class activity. The Piazza team is based in Palo Alto, California. In November 2011, Piazza launched iOS and Android mobile apps which would allow students share their ideas and get their queries answered. Piazza (web service) Piazza is a Q&A web service. It can be described as "mixture between a wiki and a forum" that can be used with learning management systems. The word Piazza comes from the Italian word for plaza—a common city square where people can come together to share ideas and knowledge. Pooja Sankar created the first prototype of Piazza