'Illuminated manuscripts were created using delicate, natural materials, such as gold leaf, silverpoint, vellum, and bright, mineral-derived paints. Each manuscript was carefully illustrated, gilded, and written by hand, requiring a high degree of craftsmanship' - Google Answer:
Explanation:
Well Rembrandt built up colors and textures in his paintings through the use of layering (also sometimes used multi-layers) and also some of the paintings were thick, he used a strategy called "IMPASTO"
The answer is humor! It’s been shown it helps with all of those mentioned benefits :)
Are there any options? if not then it could be James Madison
60,000 - 70,000 that should be the answer