• Food and drinks A frosty Muggle treat also served in Diagon Alley. Read More
• Food and drinks A Honeydukes candy, presumably shaped like mice, that makes your teeth chatter and squeak. Read More
• Organizations An organisation which regulates Quidditch on an international level. The ICWQC was created after the International Statute of Secrecy was implemented in order to find suitable venues for the Quidditch World Cup to take place and to police the games. It also publishes The Official Guide to the Quidditch World… Read More
• Sports teams The Ilkley team, in the 1100s, played a game against another team from Yorkshire which was described in a now-famous letter from Goodwin Kneen to his cousin Olaf in Norway. (QA7)… Read More
• Wizarding culture Because Ilvermorny was based on Hogwarts, it boasts four houses. These houses were named by the founders of the school, Isolt and James Steward, and their two adopted sons, Webster and Chadwick. Unlike Hogwarts, the houses were named for magical creatures with which the founders were familiar. Isolt named one house… Read More
• Historical events American holiday also known as the Fourth of July which commemorates the signing of the Declaration of Independence on July 4th, 1776. The document, written and signed by future presidents John Adams and Thomas Jefferson as well as statesman Benjamin Franklin, stated the original Thirteen Colonies no longer had allegiance… Read More
• Magical objects Presumably, a quill that inks itself without needing to be manually dipped in an inkwell. Read More
• Words and terms Colloquial term meaning ‘isn’t it?’… Read More
• Organizations Students hand picked by Dolores Umbridge for their support of the Ministry against Dumbledore (and specifically were willing to support Umbridge) were formed into a group called the Inquisitorial Squad. The members seemed to all be Slytherins. Read More
• Magical artifacts When thrown into the air, turns the immediate area pitch black so that common light spells and fire magic will not work in the area of effect, although a Hand of Glory will (HBP29). Read More
• Rules and laws Percy Weasley hoped the Transylvanian wizards would sign on to the International Ban on Duelling, which seems to have been accepted by the Ministry of Magic in 1994 (GF23). Read More
• Rules and laws The International Statute of Secrecy is a wizarding law which was instituted in 1689 (TBB/WHP) and put into effect in 1692 in order to hide the existence of witches and wizards from the Muggles who persecuted them. In 1692, the International Confederation of Wizards held a summit. It was established that… Read More
• Wizarding culture Many countries have magical governing bodies; Bulgaria, for example, has its own Ministry of Magic, the Minister of which, Mr. Oblansk, sat in the Top Box to watch the World Cup Final in 1994 (GF8). There is also a Ministry of Magic in Norway (QA3) and other countries. All of these governmental organizations have signed the International Statute… Read More
• Clothing An Invisibility Cloak is a cloak of silvery grey material that, when worn, makes the covered parts of the wearer invisible.  Invisibility Cloaks are rare and valuable. Read More
• Sports teams West Ham United is a Muggle football club, founded in 1895, and based in West Ham, East London. Read More
• Plants