It is a certain kind of a chronicle covering all events & happenings in the life of revolutionary activities of the President Ho Chi Minh ( 1890 - 1969 ). In that kind of chronicle, all events & happenings that took place in the fixed / concrete day are arranged by the order of time from the day of the 1st to 30th of 12 months of a year. The book that you are holding is volume I of the book-set of 2 volumes in which the chronicle is started with the day of 1st of January of the year 1911 and ended with the day of 30th of June of the year 1968. The book is a multi-purpose convenient & useful tool - reference for historians, researchers & large readership.