The modern history of toothpaste began in 1892. That was the year Dr. Washington Sheffield of the USA invented the collapsible tube for storing toothpaste. Four years later in 1896, Colgate began making its own brand. The Early Toothpastes.
Prolog is relatively easy to deploy, and the cost for a small company to implement the system would be in the range of $10,000 for three concurrent licenses and another $10,000-15,000 for implementation and basic configuration.
1.4 Practical Session. 1  Donât be fooled by the fact that the description of the practical sessions is shorter than the text you have just read; the practical part is definitely the most important. Yes, you need to read the text and do the exercises, but thatâs not enough to become a Prolog programmer.