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 Northern Ireland to show their support for a United Ireland. After the 1998 Good Friday Agreement, flags continue to be a source of disagreement in Northern Ireland. The Agreement states that: Nationalists pointed to this to argue that the use of the Union Flag for official purposes should be restricted, or that the Irish tricolour should be flown alongside the British flag on government buildings. Sinn Féin ministers in the power-sharing Northern Ireland Executive instructed that the Union Flag was not to fly from buildings operated by their respective departments. This power was removed from ministers by virtue of the Flag Regulations