Ancient Iranian religion was strongly connected. Beginning in the early 10th-century BC, the ancient Iranian religion was gradually displaced by Zoroastrianism, which contains many essential aspects of its predecessor. The sources on ancient Iranian religion, though limited, consist of textual and material sources. The textual sources are both Iranian and non-Iranian. An important Iranian source is the Avesta, which are Zoroastrian sacred scriptures made in the Avestan. This is considered the principal source of knowledge on ancient Iranian religions. It is a collection of several texts that seems to have been over a large span of time by a variety of authors. These
The Book of Dave is irrelevant, compared to what people make of it. At the same time, reports of increased raisings of the Thames Barrier had led him to contemplate that a catastrophic flood of London would render even detailed archival knowledge unable to reconstruct the metropolis. The "Book of Dave" can be considered to be a parody of modern religion especially with regard to blind faith. For example, the "Hamsters", the inhabitants of the island of Ham (actually the higher, unflooded part of Hampstead Heath), believe that certain verses out of the book are sacred "hymns", where in fact they are just excerpts