Harun al-Rashid (786 to 809) who encouraged arts and learning.
No. At first it wasn't and then slowly they started to realize how bad it was and created laws and etc to protect the working class.
Herman Christian Roebling, Carl Roebling, and Friederike Amalie
Answer:
What is an Immunodeficiency disorder
Explanation:
Immunodeficiency disorders prevent your body from fighting infections and diseases. This type of disorder makes it easier for you to catch viruses and bacterial infections.