3. Travellers, in the early ages of the world, either carried with them the means of sustenance, and protection from the weather, or relied upon the hospitality of strangers; but, as the intercourse between different places for the purposes of trade, increased, houses of public entertainment were established, which at first were chiefly kept by women.
4. The people of antiquity, in every age and nation, whether barbarous or civilized, were, however, remarkable for their hospitality. We find this virtue enjoined in the Mosaic writings, and scriptures generally, in the poems of Homer, as well as in other distinguished writings, which have descended to our times. The heathen nations were rendered more observant of the rites of hospitality by the belief, that their fabulous gods sometimes appeared on earth in human shape; and the Jews and ancient Christians, by the circumstance, that Abraham entertained angels unawares.
5. On account of the occasional acts of violence committed by both the guest, and the master of the house, it became necessary to take some precautions for their mutual safety. When, therefore, a stranger applied for lodgings, it was customary among the Greeks for both to swear by Jupiter, that they would do each other no harm. This ceremony took place, while each party stood with his foot placed on his own side of the threshold; and a violation of this oath by either party, excited against the offender the greatest horror.
6. The Greeks and Romans, in common with the people of many other nations, were in the habit of making arrangements with persons at a distance from their homes, for mutual accommodation, when either party might be in the vicinity of the other. In these agreements, the contracting parties included their posterity, and delivered to each other tokens, which might be afterwards exhibited in proof of ancient ties of hospitality between the families. They swore fidelity to each other by the name of Jupiter, who was surnamed the Hospitable; because he was supposed to be the protector of strangers, and the avenger of their wrongs.
7. This relation was considered a very intimate one, especially by the Romans; and, in their language, it was called _hospitium_, or _jus hospitii_; hence, the guest and entertainer were both called _hostes_, a word from which _host_ is derived, which is employed to designate both the landlord and the guest. The Roman nobility used to build, for the reception of strangers, apartments called _hospitalia_, on the right and left of the main building of their residence.