National Best Friends Day is celebrated on June 8th every year in the United States and Canada. It is a day to celebrate friendship and spend time with your best friend, showing them how much you appreciate them being in your life. The origins of this holiday can be traced back to 1935, when the US Congress declared June 8th a holiday to honor friendship and close friends. Apparently, this specific day was chosen as the weather is usually good at this time of the year, so friends can celebrate the day together by doing outdoor activities such as picnics or going to the beach. National Best Friends Day is not a public holiday, so businesses and schools remain open.