Rembrandt, The Night Watch

On Tuesday, a team of eight restorers started removing the varnish from the painting following years of high-tech research.
The 17th century was the zenith of painting, in the Netherlands. In no other era were artists so productive. Never before had so many painters tried to make a living from their art. Demand was huge.
Event, which was the first of its kind in the world and now involves more than 20 institutions, is run by museums rather than ...