the first manned rocket was built in what state

To find out in which state the first manned rocket was built, we can follow these steps:

1. Open a web browser and go to your preferred search engine (e.g., Google).
2. Enter a search query related to the topic, such as "where was the first manned rocket built?"
3. Look for reliable sources of information, such as well-known aerospace organizations or reputable news outlets.
4. Read through the search results and select a source that provides the most reliable and relevant information.
5. The selected source should mention the state where the first manned rocket was built.

Since you asked for the state where the first manned rocket was built, the answer is: The first manned rocket was built in the state of Texas, United States. Specifically, it was built at White Sands Missile Range in New Mexico and known as the V-2 rocket developed by German scientist Wernher von Braun as part of Operation Paperclip during World War II.