On the other hand the building of houses and huts by the Indo-Germans is attested by the Sanscrit -dam(as)-, Latin -domus-, Greek —domos—; Sanscrit -vesas-, Latin -vicus-, Greek —oikos—; Sanscrit -dvaras-, Latin -fores-, Greek —thura—; further, the building of oar-boats by the names of the boat, Sanscrit -naus-, Latin -navis-, Greek —naus—, and of the oar, Sanscrit -aritram-, Greek —eretmos—, Latin -remus-, -tri-res-mis-; and the use of waggons and the breaking in of animals for draught and transport by the Sanscrit -akshas-(axle and cart), Latin -axis-, Greek —axon—, —am-axa—; Sanscrit -iugam-, Latin -iugum-, Greek —zugon—. The words that denote clothing- Sanscrit -vastra-, Latin -vestis-, Greek —esthes—; as well as those that denote sewing and spinning-Sanscrit -siv-, Latin -suo-; Sanscrit -nah-, Latin -neo-, Greek —netho—, are alike in all Indo-Germanic languages. This cannot, however, be equally affirmed of the higher art of weaving.(5) The knowledge of the use of fire in preparing food, and of salt for seasoning it, is a primeval heritage of the Indo-Germanic nations; and the same may be affirmed regarding the knowledge of the earliest metals employed as implements or ornaments by man. At least the names of copper (-aes-) and silver (-argentum-), perhaps also of gold, are met with in Sanscrit, and these names can scarcely have originated before man had learned to separate and to utilize the ores; the Sanscrit -asis-, Latin -ensis-, points in fact to the primeval use of metallic weapons.
No less do we find extending back into those times the fundamental ideas on which the development of all Indo-Germanic states ultimately rests; the relative position of husband and wife, the arrangement in clans, the priesthood of the father of the household and the absence of a special sacerdotal class as well as of all distinctions of caste in general, slavery as a legitimate institution, the days of publicly dispensing justice at the new and full moon. On the other hand the positive organization of the body politic, the decision of the questions between regal sovereignty and the sovereignty of the community, between the hereditary privilege of royal and noble houses and the unconditional legal equality of the citizens, belong altogether to a later age.