Would focusing on self-improvement do more to change the world for the better than attempting to change the world?

According to greenville why does great britain have a large debt and who should pay that debt? ?

Prior to the presence of europeans on the continent, the slave trade in africa a) did not exist in any form. b) was limited to internal trade only. c) included the trans-saharan and indian ocean slave trade. d) was rarely needed due to the lack of an agricultural economy.

Which of the follow modern activities would only have been possible after the neolithic revolution