Today is 3 December (3D). That makes today 3D Printing Day. According to internationaldays.co:
3D Printing Day is held on December 3rd to pay tribute to this innovative technology. The observance raises awareness, educates, and promotes the benefits of the 3D printing industry. In 1984, Chuck Hull developed the first 3D printing technology, called stereolithography. This technology has significantly boosted industry and society, allowing new innovative and revolutionary opportunities, such as the first miniature 3D-printed kidney (2002), the first habitable 3D-printed house in France (2018), and the first functional tiny human heart (2019). In 2021, a patient in the United Kingdom received the world's first 3D-printed ocular prosthesis.
Image Source: Personal Photo