February 7, 1867.

The situation in the East African colonies had not yet been transmitted back to Europe, and Ernst was not yet aware of the colonies' capture of Zanzibar.

Today is an important day for ERNST, as the modified electric light is finally ready for commercial use.

In fact, the first person to invent the electric light was Humphrey Davy, an Englishman, who made an arc lamp out of 2,000 batteries and two carbon rods, but the arc lamp was too bright, too hot, and not durable to be popularized on a large scale.

In 1854, Henry Goebel, a German who emigrated to the United States, invented the first practical electric light that lasted for 400 hours, but he did not apply for a patent.

In 1860, the Englishman Joseph Swan made a carbon filament electric lamp, which is already the most mature scheme, but Swan is subject to the vacuum technology of the current era, so the electric lamp he invented cannot work for a long time, and the history has not been improved until 1878, and he has applied for a patent.

As for now! Ernst was about to say goodbye to him, and the Berlin Electric Power Company, which had broken through vacuum technology, became the first company in this time and space to apply for a patent for a full-fledged commercial electric lamp and mass produce it.

"Ernst, it's been lit for more than ten hours without a single problem, this is definitely a cross-generational invention."

Prince Konstantin said in amazement as he looked at the electric light that was still shining in front of him.

As the promoter and investor of the invention of the electric light, Ernst naturally installed this cross-generational product in his own home.

Just yesterday, after the installers had installed them, Ernst left more than twenty bulbs on overnight to test the effect of the company's lights, and after checking them today, none of them had any problems.

The servants and Prince Konstantin were amazed at the sight of this novelty.

"Father, this is not only a great invention, but it represents a huge profit behind it, and think of how attractive and considerable it would be if Berlin to Vienna, from Moscow to London, the whole of Europe, and even the world were equipped with this electric lamp that represents "light". Ernst said excitedly.

"Yes, it's better to spread this kind of world-changing invention as soon as possible, let's start with Berlin!" Prince Constantine set the tone.

"You and I, go to the palace today, and we will recommend this thing to His Majesty."

……

Wilhelm I and Crown Prince Frederick, as well as the little boy Wilhelm II and all the nobles in the royal palace, looked at the electric lights in amazement.

More than a dozen curved light bulbs emit a unique ghostly light illuminate the halls of the entire Prussian royal palace.

"Konstantin, this is a good thing, it does not have to be as fragile as the light of a candle, nor as dim as a kerosene lamp, and it does not smell like a gas lamp."

Wilhelm I said to Konstantin.

"Your Majesty, Prussia has always attached great importance to the development and progress of education and technology, and these achievements have long been predetermined in the course of Prussia's implementation of the development of education." Prince Konstantin praised.

"Well, we are going to arrange the installation of electric lights in Berlin first, so that other countries can see the development of Prussia, we are already at the forefront of the world." William I said.

At a time when the whole world was still lit by candles and gas lamps, Berlin has lit up its streets with electricity, and it's exciting to think about.

In order to promote electric lighting, Ernst's Berlin Electric Power Company will install lighting systems for the Prussian and Austrian royal families free of charge.

As for the city lighting in Berlin and Vienna, the governments of the two countries paid for it, and with the royal families of the two countries as examples, other nobles and wealthy people had to have a set at home.

……

Three days later.

"That's what Ernst calls electric lights, and it looks really good!"

Franz said to his family.

Empress Sophie also exclaimed: "Yes! It's a miracle that such a small thing can be used for lighting without fuel and open flames. ”

"I heard that Wilhelm I was going to replace Berlin's lighting system with electric lights, and we in Vienna cannot be left behind." Franz said to the ministers beside him.

His Majesty the Emperor spoke, so he naturally complied.

In this way, Berlin and Vienna became the first and second cities to replace candles and gas lamps with electric lights.

The news spread to the world with the newspapers, and many people traveled to the two cities to see this great invention.

In the bustling downtown area, the lights began to be lit up for the first time.

Because of this achievement, Berlin Electric Company became known to the world, and the company's stock price rose sharply, becoming one of the most valuable companies in Ernst's hands.

……

"Tom, have you reached out to anyone over there?" Ernst asked Tom.

"Young master, this time we contacted the Tsar's cronies and others, and by bribing Russian officials, they are willing to act as lobbyists, and as long as the money is in place, they promise to persuade the Tsar to sell the Alaska region." Tom said.

"Very well, as long as we take this land before the Americans, we can instantly have a territory larger than the East African colonies." Ernst said with satisfaction.

"Young master, as far as I know, Alaska is a land of ice and snow, and it has no value except for animal fur." Tom reminded that in Tom's opinion, it was completely unnecessary to spend money to take over this so-called Alaska region.

"Okay, I have my own plans, this matter is not as simple as it seems, when have you seen the young master and I suffered." Ernst said.

"By the way, young master, the news from the East African colonies just now." Tom handed Ernst information from the East African colonies.

Ernst picked up the information and read it.

Gradually, a smile appeared in the corner of Ernst's eye.

"Very good, I have long had a headache about the existence of the Sultanate of Zanzibar, I did not expect them to send the opportunity to us themselves."

Ernst naturally knew the influence of the Sultanate of Zanzibar on the East African colonies, and he basically monopolized the coastal zone between the East African colonies and the sea, and it was good that there was nothing to do, but if someone used the Zanzibar Sultanate to make a fuss, the East African colonies would be threatened.

This time the Sultanate of Zanzibar crashed into the muzzle of the gun itself, and Ernst naturally did not let go of this opportunity.

He sat down in his chair, picked up the pen in front of him, and began to write down his approach to the Sultanate of Zanzibar, which was about to settle the security of the sea entrance to the sea once and for all.

"Tom, you send this document to the East African colonies, and tell them to do as they are requested." Ernst commanded.

"Yes, young master." Tom responded.

He turned around and took the document to the telegraph room, where he sent it to Trieste, where he was brought back to East Africa by sea.