Complex sentence: Jaroslava Brychtová began to experiment with casting and carving glass in the late 1940s and founded the Center for Architectural Glass at the Specialized School of Glassmaking in 1950.
Split into simpler sentences: Jaroslava Brychtová began to experiment with casting and carving glass in the late 1940s. She founded the Center for Architectural Glass at the Specialized School of Glassmaking in 1950.