Luluwa according to some religious traditions was the oldest daughter of Adam and Eve, the twin sister of Cain and wife of Abel. According to these traditions, she was the first female human who was born naturally. According to Islamic and rabbinic tradition, a marriage between Luluwa and Abel was proposed and arranged by their father Adam. In order to commence contentment from Luluwa's twin brother, Adam suggested that a sacrifice be made, yet sacrifice was subsequently rejected by God. The reason behind the commotion was that Cain viewed Luluwa as being aesthetically more attractive than Awan. The subsequent friction between Abel and Cain meant to Luluwa was the primary cause of the world's first murder.
Kalmana or Calmana; Balbira
Some sources in the Eastern Orthodox traditions state Luluwa's name as Calmana or Calmanna. Alternative transliterations of her name Aclima include Aclimah, Aclimia, Aclimiah, Klimia. In the Seder Hadorot, Luluwa is called Kalmana. states that after he had killed Abel, "Cain knew his wife, and she conceived and bore Enoch". In an effort to explain where Cain and Abel acquired wives, some traditional sources stated that each child of Adam and Eve was born with a twin who became their mate. According to the Seder HaDorot, the wife and twin sister of Cain was named Kalmana, and the wife and twin of Abel was Balbira. The sister of Cain was named Kalmana in the Apocalypse of Pseudo-Methodius II.1., and Calmana in the Golden Legend. The poet Petrus Riga included Calmana in his famous poemAurora, and this could have been a source for her appearance in Peter Comestor's . Comestor's Biblical narrative text then served as the standard textbook for Biblical education for centuries.
Luluwa
Religious sources also describe Aclima's name as Luluwa. Luluwa, the sister-wife of Abel, is described as the most beautiful of the early daughters of Adam and Eve. However, Cain reportedly hated her whilst in Eve's womb with her. The name Luluwa means "beautiful". This narrative was recorded in the Forgotten Books Of Eden, which itself is a exegesis of earlier apocryphal texts.