Answer:
Barton very publically spoke in favor of equal rights for women. For example, in 1882 Barton delivered a lecture extoling the role Anthony, Stanton, and others played in allowing her to be such a public figure during the Civil War
The modern country that was not part of that nation is Spain. East Prussia today is part of Russia, Lithuania and Poland. The answer to the question posted above is 'Spain'.
Islamic scientists developed Algebra.
They built the first observatory.
They introduced the modern day Hindu-Arabic numeral system.
