This book describes the lives and contributions of Great World" Leaders. The Great World" leaders have impacted the lives of their people. They have contributed to the betterment of their societies. Their people are indebted to the Great World" Leaders for wealth of their Creative thoughts.
The book describes the lives and contributions of the Great Scientists. The great scientists have contributed immensely towards the advancement of science and human lives. This includes many new inventions and new discoveries. The world is eternally indebted to the great scientist for the wealth of their creative thoughts and human endeavours.