When we talk about “black April day”, nobody understands this. A few people would know it, but “journey to freedom day” is more relevant.
Beginning in 1975 Canada started accepting refugees. The orphans arrived in Canada. On April 24 the Canadian embassy accepted refugees. On April 30 they accepted refugees. I came to Canada in 1975 on May 27. I remember that date. Canada accepted me and I don't know how many others.
Basically, that's the date after the war. We changed the name to “journey to freedom day” to reflect the amazing human rights role Canadians played in welcoming thousands and thousands and thousands. During 1979 and1980, Canada accepted 60,000 Vietnamese refugee boat people, so we think this name is better than something more negative.