Given the following piece of context, determine if the question can be answered from the context and the context only. If the question can be answered from the context, return to the user "Answer found". If the question cannot be answered from the context, return to the user "No Answer Found". 

Context: 
The NAME_1 program, also known as Project NAME_1, was the third United States human spaceflight program carried out by the National Aeronautics and Space Administration (NASA), which accomplished landing the first humans on the NAME_2 from 1969 to 1972. First conceived during NAME_3. NAME_4's administration as a three-man spacecraft to follow the one-man Project Mercury which put the first Americans in space, NAME_1 was later dedicated to President NAME_5. NAME_6's national goal of "landing a man on the NAME_2 and returning him safely to the Earth" by the end of the 1960s, which he proposed in a May 25, 1961, address to Congress. Project Mercury was followed by the two-man Project Gemini (1962–66). The first manned flight of NAME_1 was in 1968.

Question: 
When was the first manned flight of NAME_1? Respond with at most 700 words.
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