Arrive the US on Jan 1994 on student visa.
Received my Mater degree in Mechanical engineering in 1996.
Practical training with a company immediately after graduation then hired by this company as a full employee and I received my H1B visa on 1997.
Received my Green Card in 2002.
Now you know.
Mater=Master
Now we know why it's important to put an end to the H1B program.