Every technology useful for society for example computer.phone . Radio
Creating the first nuclear weapon (which was used on the city of Hiroshima).
Answer:
Language and Education
Language and literacy have power in the novel Sold. Even in a society that is pretty male-dominated and power-oriented, Ama recognizes the value of education—and as a result, Lakshmi attends school at home on the swallow-tailed peak, and she knows how to read and write in her home language.
