A large region in central Kentucky is sometimes called the Bluegrass region.
The calotype process createa translucent original negative image which is its advantage to daguerreotype.
Explanation:
The calotype method produced a translucent starting negative picture from which multiple positives could be executed by a simple touch sheet. This gave it an essential advantage over the daguerreotype process, which occasioned an opaque real positive that could only be reproduced by mimicking it with a camera.
Answer:
By placing Marilyn Monroe's portraits in the diptych, Warhol was commenting on the saint-like nature that fans assign celebrities, which in turn causes the public to approach celebrities with some sense of holiness and immortality.