It's either:
Symbolic Interaction
Functionalism
Stimulus-Value-Role Theory
or
Conflict Theory
Answer:
1.- Because the reasons for teaching English were for personal growth and curriculum, a practice of mutual benefit, and became a massive international business.
2.- Ryan says that the TOEFL was given a lot of power and it became a weapon where the poorest were excluded, since the prices for the exam are very high and at the same time it does not let discover the intelligence of those who don´t approve it.3 .- The diversity of languages can help cooperation and improve understanding of some things, what someone may not understand in one language, someelse may do it in another.4.- He invented a cost free solar lamp, so that children of his village could have the same light to study as those who enjoyed electricity.5.- He meant that people who did not have their own light could never pass exams, do not let a language divide us and leave us in the dark, intelligence is not measured by how much English people speak.
Explanation:
They help by uncovering secrets about the past because inventors or current society can build off those ideas or past activities by developing new cultures and new laws later on in the future that can become more or more reliable than what it was in the past.