21. The origins of the travelling salesman problem are unclear. 22. He then worked as a travelling salesman for a firm in Clyde, Ohio until 1880. 23. In another experiment a simple version of the travelling salesman problem was solved. 24. A Portugese travelling salesmen who specializes in derrogatory poety and cartoons that satire Mesopotamian religions. 25. His early career involved work as a travelling salesman for jewelry firms in New York. 26. Travelling salesmen were the order of the day, until the advent of the motor car.27. This technique can be applied to the travelling salesman problem as well as many related problems. 28. It also employed travelling salesmen to service retail accounts and advertised its products across the world. 29. In 1906, Lyon was working for a lumber company in Bridgeport, Connecticut as a travelling salesman . 30. Many of his games can be seen as board game variations on the travelling salesman problem.