Quarantine Edinburgh and Leith, grain was from that date declared to be a non-susceptible article. About 1788 an order of the council required every ship liable to quarantine, in case of meeting any vessel at sea, or within four leagues of the coast of Great Britain or Ireland, to hoist a yellow flag in the daytime and show a light at the main topmast head at night, under a penalty of After 1800, ships from plague-countries (or with foul bills) were enabled to perform their quarantine on arrival in the Medway instead of taking a Mediterranean port on the way for
Flag of Australia 1924 agreement that the Union Flag should take precedence as the National Flag with state and local governments henceforth able to use the blue ensign. As the Union Flag was recognised as the National flag, it was considered disloyal to fly either ensign without the Union flag alongside, and it was the Union Flag that covered the coffins of Australia's war dead. In 1940 the Victorian government passed legislation allowing schools to purchase Blue Ensigns, which in turn allowed its use by private citizens. Prime Minister Robert Menzies then encouraged schools, government building and private citizens to use the Blue