He discovered the electron in 1906. i'm pretty sure this is right.
c. a preamble i think because all the other wer in the us constitution. i hope it helps
Answer:
Scientists advanced the fields of algebra, calculus, geometry, chemistry, biology, medicine, and astronomy. Many forms of art flourished during the Islamic Golden Age, including ceramics, metalwork, textiles, illuminated manuscripts, woodwork, and calligraphy.
Explanation:
Hope it's help