Propaganda - What is "Propaganda"?
Joseph Gobbels (Reich Minister of Third Reich) - 1933 (Wikipedia)
Mao Zedong, Chairman of the People's Republic of China, Comrade Mao, Chairman of the Chinese Communist Party (CCP), President of the People's Republic of China
- 1957 (Wikipedia)
Conclusion
Propaganda can be a crucial tactic governments like to use as a way to control their citizens, for example --- Mao Zedong (毛泽东) took a famous quote from Joseph Gobbels and wrote it in his Communist Manifesto (毛主席语录/Little Red Book) from 1966 December he wrote - "谎言重复一千遍，也不会成为真理，但如果重复一千遍而不许别人拆穿，许多人就会把它当成真理" ("A lie repeated a thousand times will not become the truth, but if it is repeated a thousand times without allowing others to expose it, many people will take it as the truth").
Article three: Propaganda
In our day-to-day lives, no matter where, you'll spot propaganda, sometimes you won't notice and think past it, but sometimes you'll see it after learning Socials 9. Propaganda is made by the government/person in power to control one's ideas on politics and literally everything else.