Another method of taxation was what was called _tonnage and poundage_. This was an ancient tax, assessed on merchandise brought into the country in ships, like the _duties_ now collected at our custom-houses. It was called tonnage and poundage because the merchandise on which it was assessed was reckoned by weight, viz., the ton and the pound. A former king, Edward III., first assessed it to raise money to suppress piracy on the seas. He said it was reasonable that the merchandise protected should pay the expense of the protection, and in proper proportion. The Parliament in that day opposed this tax. They did not object to the tax itself, but to the king's assessing it by his own authority. However, they granted it themselves afterward, and it was regularly collected. Subsequent Parliaments had granted it, and generally made the law, once for all, to continue in force during the life of the monarch. When Charles commenced his reign, the Peers were for renewing the law as usual, to continue throughout his reign. The Commons wanted to enact the law only for a year at a time, so as to keep the power in their own hands. The two houses thus disagreed, and nothing was done. The king then went on to collect the tax without any authority except his own prerogative. [Sidenote: Ship money.] [Sidenote: Origin of these taxes.] Another mode of levying money adopted by the king was what was called _ship money_. This was a plan for raising a navy by making every town contribute a certain number of ships, or the money necessary to build them. It originated in ancient times, and was at first confined to seaport towns which had ships. These towns were required to furnish them for the king's service, sometimes to be paid for by the king, at other times by the country, and at other times not to be paid for at all. Charles revived this plan, extending it to the whole country; a tax was assessed on all the towns, each one being required to furnish money enough for a certain number of ships. The number at one time required of the city of London was twenty. [Sidenote: 1636.] [Sidenote: John Hampden.] [Sidenote: He refuses to pay ship money.]