Hairstylists devised a broad range of modified locks, such as multi-colored synthetic locks and "dread perms," which include the use of chemicals to treat the hair. On July 3rd, Howard Porter is believed to have invented natural human hair extensions called "dreadlocks." Although this may not seem like a significant date, it is celebrated as "dreadlock day" by many people around the world. Natural hair extensions are hair fragments from other individuals or animals that are attached via a glue or cement to your own hair. They can be used to create any number of hairstyles that you wouldn't otherwise be able to achieve. Hair extensions have become popular again due to the rising popularity of natural hair styles. Natural hair extensions allow you to recreate your favorite celebrity hairstyles with ease. Some common types of natural hair extensions include bantu knots, cornrows, wefts, micro-macions, and remy hair. There are several different methods used to attach hair extensions. The most common method is to mix hot glue or acrylic resin into the end of each section of hair and then attach them one at a time to the hair on your head. This process can be tedious when using lots of hair, so some companies now sell pre-made sets of hair extensions.