selling personalized computers that had been specifically built for the client
The concept of demography was first introduced by French statistician and sociologist, Achille Guillard, in 1855. He used the term to describe the study of human populations and their characteristics.
No, slavery existed in Africa before Portuguese traders arrived. However, the transatlantic slave trade expanded the scale and brutality of slavery in Africa.
the cliffhanger
In 534 BC.
Michael Faraday first introduced the concept of electric fields/
the use of paper money
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Mao Zedong's concept to move China from agriculture to industry.
the assembly-line concept used in the automobile industry.
A pioneer in the automobile industry implemented the concept of the laws of supply and demand that were first introduced by Adam Smith. That automobile industry pioneer was Henry Ford.
The assembly-line concept used in the automobile industry
The concept of hospitality industry means services which are very courteously and efficiently services to a guest that he/she might be satisfied. The hospitality industry includes hotels, conference centres, restaurants and so on as well as tourism more generally.