Flag of Germany
When Heinrich XI, Prince Reuss of Greiz was appointed by Joseph II, Holy Roman Emperor to rule the then-new Principality of Reuss-Greiz on 12 May 1778, the flag adopted by the "Fürstentum Reuß-Greiz" was the first-ever appearance of the black-red-gold tricolour in its modern arrangement in any sovereign state within what today comprises Germany – the Reuss elder line that ruled the principality used a flag whose proportions were close to a "nearly square"-shape 4:5 hoist/fly ratio, instead of the modern German flag's 3:5 figure.
Flag of Europe
In 1997, the "Central and Eastern Eurobarometer" poll included a section intending to "discover the level of public awareness of the European Union" in what were then candidate countries in Central and Eastern Europe. Interviewees were shown "a sticker of the European flag" and asked to identify it. Responses considered correct were: the European Union, the European Community, the Common Market, and "Europe in general". 52% of those interviewed gave one of the correct answers, 15% gave a wrong answer (naming another institution, such as NATO or the United Nations), and 35% could or would not identify it.
In 2002, Dutch architect Rem Koolhaas designed a new flag, dubbed the "barcode", as it displayed the colours of the national flags of the EU member states in vertical stripes. It was never officially adopted by the EU or any organisation, but it was used as the logo of the Austrian EU Presidency in 2006.