Pluto was last in the sign of Gemini between the years of 1884 and 1914. Pluto takes about 248 years to make a full transit of the Astrological signs. Its time to pass through the signs can vary from between 12 and 32 years as it has an unusual orbit. It is considered a transpersonal planet and as such the interpretation of its movement through the signs applies to a whole generation of people and not specifically to an individual. Looking at the house position that your Pluto is in will give you more detailed information on how it applies to you. Gemini is a sign of the intellect and the mind. When Pluto passed through Gemini there were major changes in this period with regard to new ideas entering society. This was a period of great invention, specifically that would improve and revolutionise communication for human beings in the coming years. During this period the first motored and manned flying machine was invented. The use of Electricity was pioneered. The first radio transmissions were sent across the Atlantic and successfully received. The development of the motor car took place culminating with the first car assembly plant being created right at the end of this transit through Gemini. People born with Pluto in Gemini belong to a generation of inventions and breakthroughs in knowledge and communication.