So that factors like race and gender wouldn't influence judges decisions
Many modern will often use pen and ink as their main medium. In history most used paint, like for the stunning Mona Lisa. However, in a long time ago, most artists did not use ink. Maybe because they thought ink would look sketchy. Back then, most people did not like sketchy art, be in the modern world, now we do.
Hope this helps!
a. He drew a horizon line to show where the sky and earth appear to meet.
When a viewer suggested that one of Adams' photographs looked abstract, Adams corrected him- "I prefer the term 'extract' over 'abstract', since I cannot change the optical realities but only manage them."