23 July - Communist Party of China founded

The Chinese Communist Party (CCP), officially the Communist Party of China (CPC),is the founding and ruling political party of the People's Republic of China (PRC) and the second largest political party in the world after India's Bharatiya Janata Party. The CPC is the sole governing party within mainland China, permitting only eight other, subordinated parties to co-exist, those making up the United Front. It was founded in 1921 on the 23 July, chiefly by Chen Duxiu and Li Dazhao. The party grew quickly, and by 1949 it had driven the Kuomintang (KMT)'s Nationalist Government from mainland China to Taiwan after the Chinese Civil War, leading to the establishment of the People's Republic of China. It also controls the country's armed forces, the People's Liberation Army.

23 July - Indonesia Children's Day

Children's Day is a commemorative date celebrated annually in honor of children, whose date of observance varies by country. In 1925, International Children's Day was first proclaimed in Geneva during the World Conference on Child Welfare. Since 1950, it is celebrated on 1 June in most Communist and post-Communist countries.World Children's Day is celebrated on 20 November to commemorate the Declaration of the Rights of the Child by the UN General Assembly on 20 November 1959.

In Indonesia, Children's Day is celebrated on 23 July. It was established as a holiday in 1984.

23 July - Chandra Shekhar Azad born in 1906

Chandra Shekhar Azad (sometimes also spelled Chandrasekhar; 23 July 1906 – 27 February 1931), popularly known as by his self-taken name Azad ("The Free"), was an Indian revolutionary who reorganised commaneer in chief of the Hindustan Republican Association under its new name of Hindustan Socialist Republican Army (HSRA) after the death of its founder, Ram Prasad Bismil, and three other prominent party leaders, Roshan Singh, Rajendra Nath Lahiri and Ashfaqulla Khan. He often used the pseudonym "Balraj" when signing pamphlets issued as the commander in chief of the HSRA (Hindustan Socialist Republic Army).

23 July- Comet Hale–Bopp discovered in 1995

Comet Hale–Bopp (formally designated C/1995 O1) is a comet that was perhaps the most widely observed of the 20th century and one of the brightest seen for many decades.

Alan Hale and Thomas Bopp discovered Comet Hale–Bopp separately on July 23, 1995, before it became visible to the naked eye. It is difficult to predict the maximum brightness of new comets with any degree of certainty, but Hale–Bopp met or exceeded most predictions when it passed perihelion on April 1, 1997. It was visible to the naked eye for a record 18 months, twice as long as the Great Comet of 1811, the previous record holder. Accordingly, Hale–Bopp was dubbed the great comet of 1997.

22 July - Sobhuza II - King of Swaziland for 82 years born in 1899

Sobhuza II, KBE (Swazi also known as Nkhotfotjeni, 22 July 1899 – 21 August 1982) was the Paramount Chief and later King of Swaziland for 82 years and 254 days, the longest verifiable reign of any monarch in recorded history. Sobhuza was born on 22 July 1899 at Zombodze Royal Residence, the son of Inkhosikati Lomawa Ndwandwe and King Ngwane V. When he was only four months old, his father died suddenly while dancing incwala. Sobhuza was chosen king soon after that and his grandmother Labotsibeni and his uncle Prince Malunge led the Swazi nation until his maturity in 1921. Sobhuza led Swaziland through independence until his death in 1982. He was succeeded by Mswati III, his young son with Inkhosikati Ntfombi Tfwala, who was crowned in 1986.

22 July - Mukesh Chand Mathur born in 1923

Mukesh Chand Mathur (22 July 1923 – 27 August 1976), better known mononymously as Mukesh, was an Indian playback singer. Mukesh is considered to be one of the most popular and acclaimed playback singers of the Hindi film industry.Amongst the numerous nominations and awards he won, his song "Kai Baar Yuhi Dekha Hai" from the film Rajnigandha (1973) won him the National Film Award for Best Male Playback Singer. He was one of the best singers of his era.

Mukesh was also popular as being the voice of actors Raj Kapoor, Manoj Kumar, Feroz Khan, Sunil Dutt and Dilip Kumar as well as being lyricised by the popular lyricist Shailendra.

22 July - National Mango Day

Every year July 22 is dedicated to National Mango Day. The best way to observe the National Mango Day is by eating mangoes, a lot of them. The mangoes are juicy, sweet fruits with a seed at the centre and they are one of the many species of tropical trees. Mangoes are grown widely in frost-free tropical climates, which makes India more suitable for the cultivation. Mangoes have its native in South Asia from where the mangoes are distributed worldwide. Mango is the national fruit of India, Pakistan, and the Philippines. In India, mangoes are commonly harvested during the months March-May. The popular paisley motif is said to be inspired by the shape of the mango. Nearly half of the world population enjoy mangoes that are harvested in India. There are around 100 varieties of mangoes grown in India. Ripe and unripe mangoes consumed directly as well as cooked as dishes. Skin, seed, the sap of mangoes are also used to make Ayurvedic medicines. Hence celebrate National Mango Day with any mango based dish.

22 July - Prince George of Cambridge born in 2013

Prince George of Cambridge (George Alexander Louis: born 22 July 2013) is a member of the British royal family. He is the eldest child of Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge, and third in the line of succession to the British throne behind his grandfather Prince Charles and his father. As he is expected to become king one day, his birth was widely celebrated across the Commonwealth realms. George occasionally accompanies his parents on royal tours, and has affected business and popular culture.

21 July - The Temple of Artemis in 356 BC

The Temple of Artemis or Artemision, also known less precisely as the Temple of Diana, was a Greek temple dedicated to an ancient, local form of the goddess Artemis (associated with Diana, a Roman goddess). It was located in Ephesus (near the modern town of Selçuk in present-day Turkey). It was completely rebuilt twice, once after a devastating flood and three hundred years later after an act of arson, and in its final form was one of the Seven Wonders of the Ancient World. By 401 AD it had been ruined or destroyed.Only foundations and fragments of the last temple remain at the site.

The earliest version of the temple (a temenos) antedated the Ionic immigration by many years, and dates to the Bronze Age. Callimachus, in his Hymn to Artemis, attributed it to the Amazons. In the 7th century BC, it was destroyed by a flood. Its reconstruction, in more grandiose form, began around 550 BC, under Chersiphron, the Cretan architect, and his son Metagenes. The project was funded by Croesus of Lydia, and took 10 years to complete. This version of the temple was destroyed in 356 BC by Herostratus in an act of arson.

In Greek and Roman historical tradition, the temple's destruction coincided with the birth of Alexander the Great (around 20/21 July 356 BC). Plutarch remarked that Artemis was too preoccupied with Alexander's delivery to save her burning temple

The next, greatest and last form of the temple, funded by the Ephesians themselves, is described in Antipater of Sidon's list of the world's Seven Wonders.

21 July - The Insat-1C launched in 1988

The Insat-1C satellite was launched on 21 July 1988 from Kourou for location at 93.5°E to bring the Insat system up to full capacity.The INSAT-1C also had a data channel for relaying meteorological, hydrological, and oceanographic data from unattended land-based or ocean-based data collection and transmission platforms.

The designed to provide combined telecommunications, direct TV broadcast, and meteorological service to India's civilian community over a 7-year-in-orbit life span. The telecommunications package provided two-way, long-distance telephone circuits and direct radio and TV broadcasting to the remotest areas of India. 

The INSAT-1C was the third spacecraft in the first generation Indian National Satellite system. 
Half of the 12 C-band transponders and its two S-band transponders were lost when a power system failure knocked out one of the two buses, but the meteorological earth images and its data collection systems were both fully operational. Earth lock was lost 22 November 1989 and the satellite was abandoned. Reported insurance payout was $70 million.