Here is a concise summary of the provided text, focusing on the key points about Area 51:
**Title:** Unveiling Area 51: Secrets and Theories
**Key Points:**
1. **Real Name:** Area 51's official name is not publicly known; it's been called "Paradise Ranch", "Watertown", and "Greenland" internally.
2. **Founding:** Established in 1954 during the Cold War for military training and testing.
3. **Secrecy:** Its existence was denied until 2013 when the CIA released documents confirming it as a military test base.
4. **Security:** Heavily guarded with soldiers, sensors, electronic surveillance, and restricted airspace.
5. **Theories and Speculations:**
* Linked to UFOs and aliens, with some employees reporting work on advanced, unidentified aircraft.
* Possible underground facilities and bases, suggested by satellite images and employee accounts.
* Development of top-secret spy planes (U2, SR-71 Blackbird).
* Rumors of "intergalactic fuel" and technology for light-speed travel.
6. **Statistics and Events:**
* Around 1,500 people work there.
* A 2019 survey: 54% of American adults believe in UFOs in Area 51.
* The failed "Invasion of Area 51" event in 2019.
* Hillary Clinton's 2016 pledge to disclose more about Area 51 if elected.
Here are the key facts extracted from the text, without opinions, numbered and in short sentences:
1. **Alternate Names for Area 51**: Area 51 has also been called "Paradise Ranch", "Watertown", and "Greenland".
2. **Founding Year**: Area 51 was founded in 1954 during the Cold War.
3. **Original Purpose**: The US government took lands in the Nevada desert for training and testing purposes.
4. **Secrecy**: The existence of Area 51 was denied by the US government until 2013.
5. **Confirmation of Existence**: In 2013, the CIA released secret documents confirming Area 51's existence as a military test base.
6. **Security Measures**: The area is heavily guarded with soldiers, sensors, electronic surveillance, and restricted airspace.
7. **Employment**: Approximately 1,500 people work in Area 51.
8. **Developed Projects**: Area 51 has been involved in developing spy planes, including the U2 and SR-71 Blackbird.
9. **First Presidential Acknowledgement**: Barack Obama was the first US President to publicly speak about Area 51.
10. **Event Attempt**: In 2019, an event to "invade" Area 51 was attempted, but no one successfully entered the base.
11. **Survey on UFO Beliefs (2019)**: 54% of American adults believe there are UFOs in Area 51, 27% think it's unlikely, and 19% had no opinion.
12. **Hillary Clinton's Statement (2016)**: She expressed interest in exposing more documents about Area 51 if she were to win the presidency.
13. **Size Speculation**: Some believe the true size of Area 51 is larger than what is visible, with possible underground facilities.
14. **Advanced Technology**: Area 51 is reported to have state-of-the-art computers and advanced technologies.
15. **Warning Signs**: The perimeter of Area 51 is marked with warning signs indicating the area is restricted and dangerous to approach.