Azerbaijan regained its independence after the collapse of the Soviet Union in 1991.
The Nagorno-Karabakh enclave, which is part of Azerbaijan, was the subject of a war with Armenia that has left it a de facto independent republic, which is not internationally recognized, ironically including Armenia which "supports" it. Azerbaijan has lost 20% of its territory and must support some 800,000 refugees and internally displaced persons as a result of the conflict. Despite a 1994 cease-fire, Azerbaijan has yet to resolve its conflict with Armenia over the Nagorno-Karabakh enclave. Occupied by the local Armenian troops to this day, this conflict has not officially ended with minor skirmishes frequent, and is a major source of contention among Azerbaijanis.
The majority of the population (over 90%) is composed of Azeris, who share a culture very similar to Turkey. History, with Russian and Persian influence, has left the Azeris of Azerbaijan and Iran with some moderate differences. Minorities in Azerbaijan include Lezghins, Russians, Avars, Turks, Tatars, Ukrainians, & Georgians. Most inhabitants are Shia Muslim, although a long history of European and Russian colonialism has left many with very liberal, laisez-faire attitudes towards Islam and the country is staunchly secular. The government is a kleptocracy of the benevolent Aliyev family and their allies although, while opposition is often sacked or imprisoned, it is not as severe an authoritarian government as you'll find in Turkmenistan, Iran or the Russian Caucasus. Following independence in 1991, Azerbaijan has allowed western companies to develop its neglected, but extensive, oil fields and has seen oil production skyrocket especially since the mid-2000s. Despite this and related investments, most of the new-found wealth remains in the hands of a small number of people and the city of Baku. While Baku is full of new construction and a growing middle class, much of the country remains poor, where most people are rural agrarians and merchants.

Celebrate
These are the nationally recognized holidays for people living in Azerbaijan.
-New Year (January 1-2)
-Women's Day (March 8)
-Victory Day (May 9)
-Republic Day (May 28)
-Day of National Salvation of Azerbaijan People (June 15)
-Day of Military Forces of Azerbaijan Republic (June 26)
-State Sovereignty Day (October 18)
-Constitution Day (November 12)
-National Rebirth Day (November 17)
-Solidarity Day of World Azerbaijanis (December 31)
-Novruz Bayram – five days
-Gurban Bayram (Day of Sacrifice) - two days
-Ramazan Eid (Days after Ramadan fasting)2-3 days