Instrument meteorological conditions. Instrument meteorological conditions (IMC) is an aviation flight category that describes weather conditions that require pilots to fly primarily by reference to instruments, and therefore under instrument flight rules (IFR), rather than by outside visual references under visual flight rules (VFR).
2. âO Canadaâ only became the official Canadian national anthem in 1980. The official anthem before that was âGod Save the Queenâ, since they were a British colony. (National Anthems) 3. Sally Field played Tom Hanksâ mother in âForrest Gumpâ just six years after she played his love interest in âPunchlineâ.
The Declaration became official when Congress voted for it on July 4; signatures of the delegates were not needed to make it official. The handwritten copy of the Declaration of Independence that was signed by Congress is dated July 4, 1776.he United States Declaration of Independence inspired many other similar documents in other countries in the 18th and 19th centuries, spreading to the Low Countries, and then to the Caribbean, Spanish America, the Balkans, West Africa, and Central Europe in the decades up to 1848.