This app contains Zimsec O level History Notes and Objective questions with answers for O level. The app contains the notes for pre-colonial Zimbabwe up to the first uprising of the locals. The second section contains notes for World War 1 and leads up the causes of World War 2. The notes are presented in summarised point form, making it easy for students to quickly revise and prepare for their Zimsec O level Exams. This app is part of Age-X Development's drive to bridge the gap in ICT tools in education in Zimbabwe and the shortage of knowledge sources in the country. If you are a historian and have reason to dispute any of the historical accounts in this work, please get in touch with us.