Students wish themselves good luck during a ceremony marking the first day back to class at Lycee National school in the Petion-Ville suburb of Port-au-Prince, Haiti, Sept. 5, 2016.

First year students from a local middle school march at their school during a ceremony, marking the beginning of the new school year in Hanoi, on Sept. 5, 2016.

Palestinian schoolgirls return back to their school in the morning of the first day of the new year study, in Gaza City, on Aug. 28, 2016.

Children take part in the back to school festival in Novy Arbat Street, Aug. 24, 2016, in Moscow.

Ukrainian children from a cadet's lyceum release doves during the first day of school in Kiev, Ukraine, Sept. 1, 2016. The first day in September is known as "The Day of Knowledge," marking the traditional start of the academic year of every school year in Ukraine.

Students attend a flag-raising ceremony at Changqiao Primary School in Xicheng District of Beijing, China, Sept. 1, 2016. The new semester began in schools across China today.

A first-grade student attends a ceremony marking Knowledge Day at School 7 in Sochi, Russia, Sept. 1, 2016.

First-graders in Han Chinese clothing bow to their teachers during a first writing ceremony in Xingzhi Primary School at Qiaoxi District, Aug. 31, 2016 in Xingtai, Hebei Province of China. Over 200 first-graders attended the first writing ceremony to experience the traditional Chinese culture. The first writing ceremony was one of the most important events for students in ancient China. Now the event is held for children who will start their school life in China.

Palestinian refugee parents wait for their children on their first day of the new school year at one of the UNRWA schools at Palestinian refugee camp in Amman, Jordan, Sept. 1, 2016.

Children attend a class at School 57 in Moscow, Russia, Sept. 1, 2016. The students made a donation to the Vera Hospice Charity Fund instead of buying flowers.

Palestinian boy Ahmed Dawabsha, the only survivor of his family, writes on the blackboard on the first day of a new school year, in the West Bank city of Nablus, Aug. 28, 2016. The Dawabsha family house in Duma village near Nablus was set ablaze on July 31, 2015, which killed 18-month-old Ali and seriously injured his mother and father who later passed away, leaving the 4-year-old Ahmed Dawabsha the sole survivor.

Ukrainian cadets from the cadet's lyceum stand in line in a school yard during the first day of school, which marks the traditional start of the academic year in Kiev, Ukraine, Sept. 1, 2016.

Refugee school children attend a lesson on the first day of the new school year at one of the UNRWA schools at a Palestinian refugee camp in Amman, Jordan, Sept. 1, 2016.

A Palestinian woman combs her daughter's hair before the girl goes to school as the new school year kicks off in Hebron, West Bank, Sept. 1, 2016.

Two first-graders tidy up clothes for each other during a first writing ceremony in Xingzhi Primary School at Qiaoxi District, Aug. 31, 2016 in Xingtai, Hebei Province of China.