Elizabeth R. Cregan

Subjects

Juvenile literature, Electromagnetism, Electromagnetism, juvenile literature, History, Biography, Cells, Cytology, Meiosis, Mitosis, African Americans, African americans, juvenile literature, Blacks, Cells, juvenile literature, Edison, thomas a. (thomas alva), 1847-1931, Edison, thomas a. (thomas alva), 1847-1931, juvenile literature, Electrical engineering, Electrical engineers, Inventors, Race relations, Readers, Research, African americans, civil rights, African americans, history, African americans, politics and government, African americans, social conditions

Places

United States, Poland

People

Thomas A. Edison (1847-1931), Marie Curie (1867-1934)

Time

20th century