The federal definition of MI for PASRR is best understood in terms of the four âDâsâ: 1  A diagnosis or suspicion of a major mental illness such as schizophrenia, bipolar disorder, major depression, or an anxiety disorder such as OCD. 2  An absence of dementia. 3  A well-defined duration.  A particular level of disability.
Answer Wiki. The most produced tank in history is the Soviet T-54/55 Medium/Main Battle Tank. The estimations on the numbers built range from 86,000â100,000+ over the span of 1946â1983.
The right side. Little Willie was a prototype in the development of the British Mark I tank. Constructed in the autumn of 1915 at the behest of the Landships Committee, it was the first completed tank prototype in history. Little Willie is the oldest surviving individual tank, preserved as one of the most famous pieces in the collection of the British Bovington Tank Museum.