What is ip version 1

I know IP Version 4. But what is IP Version 1,IP Version 2 and IP Version 3? Dont ask the format of IPV1,IPV2 and IPV3. There is no such thing as IP Version 1 to 3. The first IP Version itself is IPV4.   Then how it got the name IPV4? Orginally TCP and IP worked together and there was TCP Version 1 to 3. When IP got its own format, it got the version name as IP Version 4.   I have heard about IPV6. Then what is IP Version 5(IPV5)? Believe me ! IPV5 also doest not exist. It was intentionally omitted.   But why? When they were experimenting on a new protocol called as "Internet Stream Protocol, Version 2", this protocol was doing the same job as that of ip at the Internet Layer. So to differentiate it from the IPV4, it was called as IPV5. But this version has not come out of the Lab. 2009 pannirpandy