They became powerful during the 1865 and 1900s because people and troops needed to get around more to fight off the enemy and people needed to transfer goods like gold ,food,animals, and cloths
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Explanation: The Allies won and both sides suffered heavy casualties.
On the first day, the brits lost 57,470 people, and 19,240 of them died. The frenchies lost 1590 people and the Germans lost 10 - 12 thousand. Over 1.5 million people died, got wounded, or went missing. For 5 days straight, the British fired shells at the German trenches to destroy them. At 7:30 am on the 1st of July, the Brits attacked the Germans, but enough machine guns survived the bombings so that the Germans mowed down the Brits. The Germans used poisonous gas. The prince of Wales served on the Somme.
Taiwan became important because an exile government of China was formed there that claimed to be the rightful government of China. This caused China to have two governments, one that ruled China which was the communist one and one in exile which claimed their right to have power over China but couldn't actually use that power in any way. The problem still exists today and other countries have mostly been neutral on this question.