Better Technological advancements. Boats how there were two types of sails and also the invention of the compass and the astrolobe. Hope it helps.
They believed that smuggling was not at all a crime because the laws were very unjust. The Navigation Acts were laws that were meant to enrich England, and only benefit them.
The three symbols from the Angolan flag include: a cog wheel, machete and a star. These represent the regional variation of worker's tools, and workers tools in similar combination were also seen on the flag of the Soviet Union. It's also a symbol of communist, which is the mian reason why both countries adopted this flag.