This chapter focuses on the harmonisation of civil procedural law in Europe and on a global scale. As the title indicates, this will be done by also taking into consideration past experiences in this field. The question as to the desirability of harmonisation will not be discussed. The chapter will especially focus on (1) Harmonisation as a result of national law reform, (2) Harmonisation as a result of competition between procedural systems, and (3) Harmonisation as a result of international harmonisation projects.