• Magic evolves over time-most Ancient Magic is completely forgotten or unusable.

• The first Dark Wizard was named Mao Chang, a resident of China, one of the five Ancient Societies: China, Ireland, Greece, Mesopatamia, and Egypt. He created the first circle of Dark Wizards, leading them until the first Aurors surrounded him and Expanded him to death.The bones of his foot were long kept inside the Great Wall until their suspected deterioration.

• Mud protects against Expanding Charms.

• The Time Warp Potion is very volatile, because of the combination of wormwood, gobstones, and rosewater. There are several things that can cause fatal reactions to this potion, like rumrag root, mandrake leaf, and cacti nettles.

• Cacti Nettles are a letter alterer. Used in the wrong way, this is very dangerous. For example, potion=poison.

• Certain potions require very specific storing conditions with regards to dampness, temperature, light, and even sound. Without observing these requirements, even the most potent of potions can be rendered useless. Among some of the more touchy ones are the antidotes to Cacti Needle Poison and the Draught of the Sleeping Death, Veritaserum, and the Elixir of Magic.

• The Elixir of Magic was actually the water of a well at Stonehenge, but it began to dry up because people continued to raid it for its magical restorative properties. Rumor has it that it was then moved to Hogwarts for safe-keeping.

• Wizards have a dual need for things like food and sleep, as they not only have to keep up their bodily functions, but their magic levels as well. When these go low, it could be very dangerout for a wizard's health, not to mention their studies!

• Architechturus pictoro, a charm most commonly used for Wizard construction, also has other interesting uses if you're very creative...

• The Sleeping Hex is an Ancient curse, a mixture of potions and a charm that can be put onto an object or a person. Without the cure, a rather gross mixture of bodily elements from friends and family, the afflicted has roughly 24 hours to live after his first contact with the hex.

• Very few wizards have problems with their eyesight, so there is little research on how to permanently correct it. However, Madame Pomfrey and Ginny have come up with several new and successful treatments.

• The elements can actually be used for certain forms of magic. For example, the different types of dirt, gravel, sand, silt, topsoil, deep soil, clay and rock, all have various uses. There are also several in-between types, like beach dirt, and magical rare varieties, like deep well soil or petrified rock.

• A permit is required for the use of very rare dirt, like quartz gravel (is expensive to make), black sand (very rare), and Mesopotamian red clay (even rarer, having been depleted after a robbery some years ago).

• Finite decorum is a charm that can be used to finish half-done decorations. There are different wand patterns for different holidays.

• Reflecto, a mirror charm, can also be used to protect against some basic hexes.

• The Behoeden Charms, Ego and Vid, are some of the most powerful protection charms out there. Incredibly hard to perform and requiring vast amounts of energy and a certain urgency of the caster, these ancient charms are almost never used anymore.

• Transfiguring one's own body is incredibly more complex than transfiguring other things-requires thought about the placement of internal organs, circulatory systems, and even personality.

• There are days of magical power throughout the year. Depending on the day, certain kinds of magic are easier. For example, on both equinoxes, spells of remote seeing are very easily done.