In the second year of the First World War, humans also had an exposition, naturally not in Europe, but in the Americas, in San Francisco, USA, this is 1915. On August 15, 1914, a dredger named "Ankang" slowly passed through the Panama Canal in the cheers of the crowd. This was the first flight of the canal.

In the second year of the First World War, humans also had an exposition, naturally not in Europe, but in the Americas, in San Francisco, USA, this is 1915. This fair is a declaration of victory for the Americans.

On August 15, 1914, a dredger named "Ankang" slowly passed through the Panama Canal in the cheers of the crowd. This was the first flight of the canal.

In February 1881, the French began to explore the canals that communicated the two oceans. By 1898, the French faced enormous difficulties in cost increase due to technical mistakes. What is even more terrifying is that the disease killed thousands of workers, and the French insisted. Living. The new Panama Canal Company wants to sell the canal project to the United States at a cost of $100 million. Initially, the Americans feared that the canal would adversely affect their dominance of cross-strait freight, and there were many opponents. But an accidental thing changed the attitude of the US Congress. In 1898, the United States and Spain broke out in the Spanish-American War. The war between the two countries was in a state of staleness in the Caribbean. The US "Oregon" battleship went from San Francisco to reinforcements. The warships stayed up all night, to break the deadlock in the war. After 68 days, after sailing for 130 nautical miles, the warship arrived at the destination. But the war is coming to an end, because they have to spare the Cape Horn and arrive around South America. If you have this canal and arrive in the Caribbean Sea, you can't get to the eve of the night, but compared with this long voyage, it is also the end of the eve.

The US Congress passed a bill to acquire the new Panama Canal Company. It’s not difficult to do business with France, but it’s a good thing to talk to Colombia, the sovereign country of Panama at the time. According to the draft treaty between the United States and the United States, the US government enjoys 100 years of building capacity for the canal, on the condition that it gives the Colombian government 10 million US dollars of gold, and deducts 250,000 US dollars from the canal traffic tax each year to Colombia for rent.

The Americans used the emotions of Panamanians to support some of them against the Colombian government. On November 3, 1903, the independence movement was launched. The US government recognized the Republic of Panama three days later. Earlier, the US military had arrived in Panama. This is a typical transaction between politics and the economy. In the end, the rebels established the country, and the Americans did not change the price, but they gained permanent control over the canal and the 10-mile-wide canal area.

The building rights and permanent control of the canal were at hand, but the construction of the canal did not become easy. The project was the largest project since the industrial revolution of the 18th century, and the difficulties can be described as vast. During the construction of the canal, the French had 20,000 lives forever on the canal. By the spring of 1860, the project was almost ruined. Until 19 06, the Americans came back from the beginning, first strengthening the engineering foundation and improving the sanitation conditions of the environment. At the same time, they expanded the roadbed of the Panama Railway to become a two-track railway and transported the excavated earth and stone in time. Afterwards, the workers worked hard to overcome the challenges of floods and landslides, removed 150 million cubic meters of mud and stones, and finally connected the two oceans.

The 1915 Expo was held to commemorate the opening of the Panama Canal.