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Scotland produced far more university trained men than the rest of Britain.
Scottish education was based on 'useful learning' which created skilled, practical workers.
Scottish workers were skilled at agricultural work and industrial work such making ships, railway engines and steam engines. These were useful skills for countries that were developing their economies.
Language also mattered as speaking English gave Scots an advantage over other immigrant groups.
Most Scots were Protestant, which meant they did not face anti-Catholic discrimination.
Many had Scots arrived with money to invest which was popular for countries wanting to develop their industries.
Why were many Scots successful abroad?