June 13, not 16, rebels marched from Essex and Kent towards London; June 14, mob sacked Canterbury in southern rebellion; June 15, king and council met with Essex rebels at Mile End in eastern outskirts of London, who forced acceptance of most of 40-article petition; meanwhile mob under Kent rebel Wat Tyler burned much of Southwark district south of London Bridge; next day (June 16), Tyler met Richard and was killed in dispute there, after which peasants retreated