Who is the person who promotes simplified characters or the scholar who advocates the use of simplified characters the most?

Before the founding of New China, Wu founded a series of universities. After the founding of New China, these universities became famous educational institutions in China, and trained the first batch of political, economic and cultural talents for New China. Wu is the first president of China Education Union. In his long-term revolutionary education practice, he advocated simplifying the scheme of Chinese characters and pinyin according to the principles of scientificity, internationalization and popularization of Chinese characters, so as to help eliminate illiteracy, popularize education and popularize Putonghua, and promote economic construction and cultural revolution.