1- Self Announcement
2- Caucus
3- Convention
4- Direct Primary
5- Petition
Hope this helps :D
Mathematics, mostly.
They also did groundbreaking work in the following fields:
Astronomy
Philosophy
Geography
Sciences
Technology
Answer:google was made to inform us when we do not know the answer
Explanation:
Capitalism is my best guess, considering it is one of the few forms of economy that allows mostly free production. Free enterprise could also be the answer.
