Her thinking is indicative of a delusion of "grandeur".
A delusion of grandeur is the settled, false conviction that one has unrivaled characteristics, for example, virtuoso, notoriety, power, or riches. It is frequently a side effect of schizophrenia, yet can likewise be a side effect found in insane or bipolar disarranges, and also dementia.
Answer:
1) They gave us the concept of zero (0)
2) The gave of the concept of the decimal system
3) They made seminal contributions to the study of trigonometry, algebra, arithmetic and negative numbers among other areas
I tried, hope this helps :)
Ummmm...maybe if you are traveling.
Gun powder was used for military purposes in the 919 A.D. It killed many people in China. It was explosive.
De Beers
De Beers enjoyed dominant position and control of the
diamond industry. As a result, it held control of market supply and demand
dynamics and drove the diamond prices. This was as a result of massive diamond
discovery in South Africa.