Short answers, pulled from the story.
The modern English word heaven derives from the Middle English form heven which first appeared in written records around 1159. This term developed further from the Old English word heofon used by about 1000 to refer specifically to the Christianized place where God dwells.
Ancient Mesopotamians viewed the sky as a series of domes covering their flat Earth typically three but sometimes seven layers thick. Each dome consisted of different precious stones creating distinct celestial zones with the lowest heaven containing jasper and housing the stars themselves.
During the Second Temple period spanning 515 BC to 70 AD Jewish views evolved under Persian Greek and Roman influences. Ideas about soul immortality derived from Greek philosophy while resurrection concepts originated partly from Persian cosmology merging into new beliefs by early first century AD.
Mahayana Buddhism introduces pure lands outside samsara created by Buddhas upon attaining enlightenment. Sukhavati Amitabha Buddha's Pure Land represents the most popular destination ensuring Buddhahood once reborn there.
Nahua peoples Aztecs Chichimecs Toltecs constructed thirteen-level heavens each containing one many Lords ruling those realms. Omeyocan Place Two represented the most important heaven ruled dual Lord Ometeotl male Ometecuhtli female Omecihuatl creating Dual-Genesis.