Sacrum Sacrum The sacrum ( or ; plural: "sacra" or "sacrums"), in human anatomy, is a large, triangular bone at the base of the spine that forms by the fusing of sacral vertebrae S1S5 between 18 and 30years of age. The sacrum is situated at the upper, back part of the pelvic cavity, between the two wings of the pelvis. It forms joints with four other bones. The two projections at the sides of the sacrum are called the alae (wings), and articulate with the ilium at the L-shaped sacroiliac joints. The upper part of the sacrum connects with the last
Ver sacrum Ver sacrum Ver sacrum ("sacred spring") is a religious practice of ancient Italic peoples, especially Sabines and their offshoot Samnites, concerning the deduction of colonies. It was of special interest to Georges Dumézil, according to whom the "ver sacrum" perpetuated prehistoric migration practices of Indo-Europeans to the end of the Iron Age and into the beginnings of history, when stable sedentary dwelling conditions had already become general. The practice consisted in a vow "(votum") to the god Mars of the generation of offspring born in the spring of the following year to humans or cattle. Among the Sabines, this was