LONDON.- The newly-conserved masterpiece Cain Slaying Abel by Sir Peter Paul Rubens went back on public display at The Courtauld Gallery, today. The magnificent painting, widely considered to be one of the most important in the Gallerys world-class collection of works by Rubens, has been restored as part of the Bank of America Art Conservation Project which was launched in 2010. The Flemish master Rubens (1577-1640) was one of the most exciting and explosive artistic talents of early modern Europe . His energetic compositions, such as Cain Slaying Abel, greatly influenced his contemporaries as well as future generations of artists. One of the first works of Rubens’s artistic maturity and representing a pivotal moment in his early career, Cain Slaying Abel was