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The biggest changes were in rigging. At first they concentrated on lateen sails, then added a mix of square sails and lateen for deeper penetration into the South Atlantic, with further changes for the much longer route round the Cape. Knowledge of these techniques was protected by forbidding sales of ships to other countries. A third commercial advantage was Portugal's ability to absorb “new Christians” — Jewish merchants and scholars had played a significant role during Muslim rule.
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One incredible part of a culture and an explanation social standards feel so familiar, is that we learn culture how we get familiar with our local language: without formal guidance, in social settings, lifting it from others around us, without speculation.
Genuine model is the expression sex. before; sex alluded both to sexuality and somebody's biologic sex: male or female. Today, although sex still alludes to sexuality, "sex" presently implies the class’s male, female, or progressively, other sex conceivable outcomes.
The British police are called "Bobbies" after Sir Robert (Bobby) Peer, the home Secretary who introduced the act that established the police to the Parliament in 1829. This act proposed to introduce police system instead of the watchmen that had similar responsibilities before.