When the Dreyfus affair broke out in 1895, a very important development in the field of aviation also occurred, the invention of Zeppelin. The zeppelin was a German invention, which the French were very afraid of. Behind them were 100 years of almost exclusive control of the air. This was thanks to the invention of the hot-air and hydrogen manned balloons, back in 1783, seven years before the French Revolution. Now, for the first time, there was an aircraft not at the mercy of the winds. Zeppelins could reach anywhere, at any time, and stay above the target as much as they wished. The military and political reality has changed completely. World War I broke out and was largely influenced by the air raids of the German zeppelins. It shaped the modern state.
The period of the Dreyfus trial is also known as the "beautiful period" or the "Belle Epoque" in the history of France. During this period French culture reached its peak. The balloon was the technological symbol, as well as the cultural source of inspiration. All sectors of were influenced by it, especially architecture and painting. Everything that was high was decorated in detail. The most notable feature was the Eiffel Tower, which was originally designed for tying balloons as part of the international trade fair in honor of the 100th anniversary of the French Revolution. But the most appropriate architectural and periodical symbol was the ornate dome, which was built in many institutions in Paris at that time. These ornate domes resemble the first balloons, which were made of silk sheets. On the outside, the domes are prominent features in the urban landscape and are integrated as architectural pearls between the roofs. Anyone who enters them is immediately impressed by their unique size and decoration. Time stands and the soul expands.
It is important to say that unlike the domes of religious buildings around the world, the Parisian dome is secular. It is located in public buildings of all kinds. It is addressed for the secular citizen. The domes illustrate the French worldview during the Belle Epoque. They saw the sky as a painting of unlimited inspiration, not only religious, but cultural and human in general. It was now possible to use the sky as a colorful background for Impressionist painting, which became the flagship of French culture. This is expressed in the city's most important museums.
Paris was completely rebuilt during the Belle Epoque period, with Large squares leading to long boulevards. The boulevards cross the city like air routes. There are dialogues between the square and the boulevard, the circle and the straight line, the dome and the long hall. The dome and the square are a place of convergence and a sense of eternal perfection. In contrast, the long hall or the boulevard represent a story plot developing over time.
The dome or the square can be compared to the French ''macron'' cookie, which was created at the beginning of the 20th century, as a cookie made up of two discs, including a filling. The macron is considered difficult for baking.
The long hall or boulevard can be compared to the baguette, the long and narrow French bread. The baguette is a simple bread and was invented in World War I. when French did not have enough time to puff the dough for complex breads during the war nights.