Complex sentence: Practitioners of Buddhism, Taoism, and Confucianism placed cut flowers on their altars, a practice which dates back to 618-906 CE. They created paintings, carvings, and embroidered items with depictions of flowers.
Split into simpler sentences: Practitioners of Buddhism, Taoism, and Confucianism placed cut flowers on their altars. This practice dates back to 618-906 CE. They created paintings, carvings, and embroidered items with depictions of flowers.