A bill of exchange is an order to pay. When a merchant in Argentina sells wheat to an English buyer, he draws a bill on the buyer (or some bank or firm in England whom the buyer instructs him to draw on), saying, "Pay to me" (or anybody else whom he may name) "the sum of so many pounds." This bill, if it is drawn on a firm or company of well known standing, the seller of the wheat can immediately dispose of, and so has got payment for his goods. Usually the bill is made payable two or three, or sometimes six months after sight, that is after it has been received by the firm on which it is drawn, and "accepted" by it, that is signed across the front to show that the firm drawn on will pay the bill when it falls due. These bills of exchange, when thus accepted, are promises to pay entered into by firms of first-rate standing, and are held as investments by English banks. Bills of exchange are also drawn on English houses to finance trade transactions between foreign countries, and also as a means of borrowing money from England. When they are drawn on behalf of English customers, the credit given is given at home, but as it is (almost always) given in connection with international trade, the transaction may be considered as part of international finance. When they are drawn on behalf of foreign countries, trading with other foreigners, or using the credit to lend to other foreigners, the connection with international finance is obvious. They are readily taken all over the world, because all over the world there are people who have payments to make to England owing to the wide distribution of our trade, and it has long been England's boast that bills of exchange drawn on London firms are the currency of international commerce and finance.