Saltire detected the symbol, which often appears with balls in the quadrants formed by the arms of the chi-cross, in standards that appear on the coins of Persepolis. She suggested that early Christians endorsed its solar symbolism as appropriate to Christ. She also wrote: "although it cannot be proved, ... in the white saltire of St. Andrew we still have a reminiscence of the old standard of the Persepolitan kingdom". In the old European Union standard, a black saltire set in an orange square is the hazard symbol for irritants (Xi) or harmful chemicals (Xn). It indicates a hazard less severe
The Moon Is a Harsh Mistress and Australian colloquial words, but strongly influenced by Russian grammar, especially omission of the article "the", which does not exist in most Slavic languages (cf. Nadsat slang from "A Clockwork Orange" by Anthony Burgess). This aspect of the Lunar dialect is explained by the fact that many of the deportees on Luna are Russian. The novel indicates that Earth had experienced a nuclear world war (the "Wet Firecracker War") in the past century, although no significant traces of devastation are apparent at the time of the novel's setting. Other changes include unification of the entire North American continent under a