In the 19th century, in Europe, the proletariat struggled hard on the road to fight for their rights. Marx and Engels were like two shining stars.

He comes from a family of lawyers, and she comes from a wealthy textile family. This family background has largely shaped their starting point of thinking.

Their encounter marked the starting point of major changes, and their joint struggle became the light of hope for the working class.

In this case, the problem is that the proletariat, although small, has to challenge the powerful power of capitalism.

Marx joined the journalism industry in 1842 and successively spoke out in many newspapers to criticize reality.

At this time, Engels was also very concerned about the situation of workers under the capitalist system.

They met in 1844 on the European continent where the labor movement was active at that time.

They found that both sides had very similar views on the nature of capitalism and the mission of the proletariat.

This laid a solid foundation for their future cooperation.

They quickly integrated their thoughts and actively devoted themselves to exploring the path of proletarian liberation.

They come from different backgrounds but pursue the same goals, which prompts them to collaborate with each other to enrich and enhance their respective theories.

They analyzed the connection between industrial progress and workers' living conditions in European countries and found that the deeper the suffering of workers, the more it highlights the flaws of the capitalist system.

In 1848, Marx and Engels jointly drafted the Communist Manifesto.

This was created in London, England, during a period when workers' strikes were raging one after another.

The Communist Manifesto is like a sharp sword that strikes at the heart of capitalism.

It comprehensively and systematically expounded the theory of scientific socialism for the first time, providing theoretical guidance for the proletariat.

The book clearly criticizes the shortcomings of capitalism and lays out a blueprint for communism.

Its publication gave many labor organizations a direction, and many labor leaders studied it diligently.

Oppressed workers in many parts of Europe actively spread the ideas in the Communist Manifesto by holding rallies and secretly circulating it.

This also inspired a series of subsequent labor movements.

The First International, the International Working Men's Association, was established in 1864.

Marx and Engels devoted themselves to leading the First International.

At that time, it was not uncommon for workers in factories in many parts of Europe to work long hours and live in very poor living conditions.

In the association, they actively unite the power of workers from various countries and fight for the rights and interests of the working class.

They coordinate workers' organizations from various countries, enhance the unity of the working class, and organize strikes and protests.

Under their leadership, the First International continued to grow, promoting the rapid development of the international workers' movement. Capitalists began to pay attention to the needs of workers, and some basic rights of workers were initially protected.

Marx died in London in 1883.

Afterwards, Engels took on the task of sorting out Marx's literary heritage alone.

To ensure the accurate publication of Marx's works, he had to conduct meticulous checks on a large number of theoretical works, manuscripts and letters. These materials cover Marx's academic achievements throughout his life, and the content is both large and complex.

Engels continued to lead the global labor movement and continued to promote the spread of Marxism around the world.

He deeply explained Marx's theory to the working class in Europe and even the world, and used this as a guide to promote the operation of the Second International.

In it, we must fight resolutely against all kinds of opportunism and defend the purity of Marx's theory.

Engels clearly opposed any tampering with Marx's ideas, and thus became the spiritual pillar of the working class of that era.

Marx discovered the law of human historical development.

At that time, historical research was often influenced by complex ideas. He boldly proposed that it is crucial to produce materials that meet basic living needs, such as clothing, food, shelter, and transportation.

He pointed out that economic development is the basis for the development of other superstructures.

In addition, Marx revealed the capitalist production model and the specific development law of bourgeois society, which is surplus value.

While bourgeois economists are still searching, this discovery has clearly pointed out the essence of capitalist exploitation.

These theoretical findings provide a fundamental basis for understanding social development.

The proletariat knows very well that only by controlling the means of production and getting rid of the exploitation of surplus value can it achieve complete freedom. This understanding reveals the theoretical pursuit of proletarian struggle.

Marx viewed science as a revolutionary force for social change.

He pays attention to new developments in various sciences. He always pays close attention to emerging fields such as electricity and conducts in-depth research on the social effects that these discoveries may bring.

They published a large number of articles in numerous newspapers and media throughout their lives and participated in one public opinion battle after another.

Their work points the way for the proletariat.

To this day, their ideas continue to guide working class struggles and social transformation in many countries.

In the process of construction in many developing countries, they often seek inspiration from Marxist theory or face the difficulties of social development.

In the process of analyzing social contradictions in developed countries, Marxist theory plays a crucial role.

Although they are far away, the spiritual wealth they left behind will never be forgotten.