better known as Mother Teresa,was an Albanian-Indian Catholic nun and the founder of the Missionaries of Charity. Born in Skopje, at the age of 18 she moved to Ireland and later to India, where she lived most of her life. On 4 September 2016, she was canonised by the Catholic Church as Saint Teresa of Calcutta. Mother Teresa founded Missionaries of Charity, a religious congregation, which grew to have over 4,500 nuns across 133 countries as of 2012.The congregation manages homes for people who are dying of HIV/AIDS, leprosy, and tuberculosis. The congregation also runs soup kitchens, dispensaries, mobile clinics, children’s and family counselling programmes, as well as orphanages and schools. Mother Teresa received several honours, including the 1962 Ramon Magsaysay Peace Prize and the 1979 Nobel Peace Prize.

A Russian writer regarded as one of the greatest authors of all time. Having led a lax and leisurely life style during his younger years, in 1851, after running up heavy gambling debts, he went with his older brother to the Caucasus and joined the army. His experience in the army, and two trips around Europe in 1857 and 1860–61 converted Tolstoy from a dissolute and privileged society author to a non-violent and spiritual anarchist. Tolstoy’s concept of non-violence or ahimsa was bolstered when he read a German version of the Tirukkural a Indian spiritual composition. He later instilled the concept in Mahatma Gandhi through his “A Letter to a Hindu” when young Gandhi corresponded with him seeking his advice. In the 1870s, Tolstoy experienced a profound moral crisis, followed by what he regarded as an equally profound spiritual awakening, as outlined in his non-fiction work Confession . He received nominations for the Nobel Prize in Literature every year from 1902 to 1906 and for the Nobel Peace Prize in 1901, 1902, and 1909.

Georgia O’Keeffe was born on November 15, 1887 in a farmhouse in the town of Sun Prairie, Wisconsin.Her parents, Francis Calyxtus O’Keeffe and Ida (Totto) O’Keeffe, were dairy farmers. Her father was of Irish descent. From 1905, when O’Keeffe began her studies at the School of the Art Institute of Chicago, until about 1920, she studied art or earned money as a commercial illustrator or a teacher to pay for further education. Influenced by Arthur Wesley Dow, O’Keeffe began to develop her unique style beginning with her watercolors from her studies at the University of Virginia and more dramatically in the charcoal drawings that she produced in 1915 that led to total abstraction. Her career spanned seven decades and whose work remained largely independent of major art movements. Called the “Mother of American modernism”, O’Keeffe gained international recognition for her meticulous paintings of natural forms, particularly flowers and desert-inspired landscapes, which were often drawn from and related to places and environments in which she lived.

Mahatma Gandhi was an Indian lawyer, politician, social activist, and writer. Gandhi trained in the law at the Inner Temple, London. After two uncertain years in India, he moved to South Africa in 1893 to represent an Indian merchant in a lawsuit. He went on to live in South Africa for 21 years. It was here that Gandhi raised a family and first employed nonviolent resistance in a campaign for civil rights. In 1915, aged 45, he returned to India and soon set about organizing peasants, farmers, and urban labourers to protest against excessive land-tax and went on to become the leader of the freedom nationalist movement against the British rule of India. Gandhi is internationally esteemed for his doctrine of nonviolent protest (satyagraha) to achieve political and social progress.

Novak Djokovic was born on 22 May 1987 in Belgrade, SR Serbia, SFR Yugoslavia, to Dijana and Srdjan Djokovic. He is of paternal Serbian and maternal Croatian descent. His two younger brothers, Marko and Djordje, have also played professional tennis. His parents then sent him to a tennis camp in Novi Sad. In the summer of 1993, as a six-year-old, he was sent to a tennis camp organized by the Teniski Klub Partizan and overseen by Yugoslav tennis player Jelena Genčić at Mount Kopaonik, where Djokovic’s parents ran a fast-food parlour and a sports equipment business. He has won an all-time record 24 Grand Slam men’s singles titles, including a record ten Australian Open titles. Djokovic is the only man in tennis history to be the reigning champion of all four majors at once across three different surfaces. He is also the only man to achieve a triple Career Grand Slam