At 1950s it was different then today today we have many things at 1950s they didn't have many things they didn't have cars things were different then today today it's change it's not 1950s
the reason texans thought that northern states violated the constitution was because the northern states wouldn't return runaway slaves.
Answer:
Could you tell me which inventions your talking about.
Explanation:
Then I'll be able to help.