@Iminei Yes, your calculations are correct. The turn of the 20th century gave birth to much of what we consider contemporary art and design. Picasso and others came into their own in the 1910's with the birth of Cubism and there were influences that led up to that.
In 1903, the Weiner Werkstätte was founded by craftsmen from different trades that laid the foundation for Modernism. They organized in many cities around the world.
I've been a modernist since I can remember (age 4?), influenced by my Grandmother's taste which always tended towards clean lines accented by skilled hand work. (She was born in 1915). She was a woman of extremely limited means and very little education, but she had an "eye".