42 taijiquan performed by Master Wang Yanji and Pro. Li Deyini created this form.
Maste Li Tianji studied wushu from his father, Li Yulin, as well as from his father's masters, Sun Lutang and Li Jinglin. He graduated from the Shandong Wushu Institute, became a college professor, the executive of the Harbin Wushu Federation, and the first chief coach of the China Wushu Team. Li Tianji has been memorialized as one of the "Ten Best Wushu Masters of China (Zhongguo Shi Da Wushu Mingshi)."
In 1956 Li Tianji created the first standardized taijiquan: 24-Form Simplified Taijiquan, 32-Form Simplified Taiji Sword, 88-Form Yang Taijiquan, Xingyidalianhuan, Wudangjian and Wudangtaijijian.
In 1989 Pro. Li Deyin created the 42 International Competition Taijiquan form