What law did president johnson challenge, resulting in his impeachment?

President Johnson broke the law about Tenure of office act. That what got Johnson impeached from office.

Hope this helps.  

valentina tereshkova

soviet cosmonaut valentina tereshkova became the first woman to fly to space when she launched on the vostok 6 mission june 16, 1963. valentina tereshkova was the first woman to go into space. in 1963, she spent almost three days in space and orbited earth 48 times in her space capsule, vostok 6.jan 22, 2018

protected civil liberties and outlawed slavery in the new territories.