tImeline of artistic styles

I was thinking of continuing this project with a timeline of other styles of art that were around during the art nouveau era. I was going to focus on three other styles of Post-impressionism, neo- impressionism and the arts and crafts movement. I was looking at these posters, paintings, glasswork, ect. as hanging on the wall side by side with matching dates. Saying these 4 works were done in the same year or time frame. It felt a little odd to me to put these works together because of how they are displayed in a history book when you think a style has 1 time frame and another one is right after or right before the style and no coexisting with it.