Why was the date March 29 chosen to honor our Vietnam vets each year?

March 29 was chosen as National Vietnam War Veterans Day because on March 29, 1973, Military Assistance Command, Vietnam was disbanded and the last U.S. combat troops departed from the Republic of Vietnam.

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

that would be the steamboat because none of the other things are forms of transportation