International Strange Music Day 
was created by Patrick Grant, a New York City musician. The premise is simple: to get people to play and listen to types of music they have never experienced before. The ‘strange’ part can mean either unfamiliar or bizarre – the choice is entirely yours. Patrick believes broadening people’s musical spectrums can also change the way we look at other aspects of life – his mantra is ‘listening without prejudice’. This growing movement has concerts, a record label and strong support from summer schools, where it is appreciated as a great way to stimulate young minds. Have you ever wanted to combine a tight Wonder Woman costume, a frozen turkey drumstick and an inflatable wildebeest into a percussion concert? International Strange Music Day gives you the perfect excuse. What you do with these items once the music stops, of course, is your business…
https://www.daysoftheyear.com/days/international-strange-music-day/
Knife Day 
is the day to appreciate the knives that folk use on a daily basis. This day is a celebration of this marvellous tool that has been with humans since the dawn of time. The evolution of knives has been a remarkable feat – from knives made of bone, stone and flint, to modern creations using titanium, bronze, iron and steel. Nobody can deny the knife is one of man’s most useful tools – for cooking, eating, fishing, hunting, and not to forget the oh so handy Swiss Army knife. To make the most of Knife Day, why not test your knife chopping skills in the kitchen, or buy that knife set you’ve always wanted. Invite family and friends over to compare and swap knives, or get together to clean and sharpen your knives. Then there’s nothing like having a cake and enjoying a slice by the knife. And instead of wishing one another to have a nice day, why not just say: “Have a knife day!”
https://www.daysoftheyear.com/days/knife-day/
Pluto Demoted Day 
Many of us are fascinated by outer space and its many mysteries. Our own solar system went through a change in classification on 2006, when Pluto was demoted from a planet to a dwarf planet. Pluto Demoted Day now takes place every year to mark that very occasion. While sad for fans of the former ninth planet of the solar system, Pluto Demoted Day is an important day for our scientific history and is important to remember.
https://www.daysoftheyear.com/days/pluto-demoted-day/
Vesuvius Day 
The rumble and groaning of the earth as it starts to boil and roll. A cloud of dark ash that spread wherever the wind takes it. Bright, and extremely hot molten rock flowing down the hillside. These are just a few of the markers that explain a volcanic event, and none are large than the eruption of Mount Vesuvius. This is in remembrance, of that very location, and the destruction that has been caused by Mount Vesuvius.
https://www.daysoftheyear.com/days/vesuvius-day/
http://www.famousbirthdays.com/august24.html