Since 1990, AIX has served as the primary operating system for the RS / 6000 series ( later renamed IBM eServer pSeries, then IBM System p, and now IBM Power Systems ).

Since German reunification on 3 October 1990, Berlin has been one of the three city states, together with Hamburg and Bremen, among the present 16 states of Germany.

Since the transition to a democratic government in 1990, Benin has undergone an economic recovery.

Since 1990, Bulgaria has an unstable party system, in the past two decades differently dominated by the post-communist Bulgarian Socialist Party or by the right Union of Democratic Forces and recently by the new right-oriented party-Citizens for European Development of Bulgaria.

Since its return to democracy in 1990, Chile has been an active participant in the international political arena.

Since 1990, the ACR and the Czech Armed Forces have contributed to numerous peacekeeping and humanitarian operations, including IFOR, SFOR, and EUFOR Althea in Bosnia, Desert Shield / Desert Storm, Afghanistan, Kosovo, Albania, Turkey, Pakistan and with the Coalition forces in Iraq.

Since then they have had four separate periods in the top flight of English football: between 1936 – 1957, 1986 – 1990, 1998 – 1999 and 2000 – 2007.

* Rummel, Rudolph Joseph ( 1990 ) Lethal Politics: Soviet Genocide and Mass Murder Since 1917.

Since 1990 half of the world's rain forests have been destroyed.

Since 1993, the Eritrean People ’ s Liberation Front army has been involved in tree planting ; the annual average rate of deforestation during 1990 – 2000 was 0. 3 percent.

Since 1990 there has been an emergence of a German minority group, Elbinger Minderheit.

Since 1951, Germany has been at the heart of European Integration and after German reunification in 1990 further promoted peaceful integration with its neighbors.

Since 1990 ECOWAS has been engaged in a peacekeeping mission in Liberia to which Ghana has contributed a large contingent of troops.

Since the reunification of 1990, Schwarzbier, which was common in East Germany, but could hardly be found in West Germany, has become increasingly popular in Germany as a whole.

Since 1990, Hungary's top foreign policy goal has been achieving integration into Western economic and security organizations.

Since German reunification in 1990, and the accession of some Central European and Baltic States into the European Union in 2004, the Port of Hamburg has restarted ambitions for regaining its position as the region's largest deep-sea port for container shipping and its major commercial and trading centre.

Since 1990, Hezbollah has been accused of the following attacks and attempted attacks.

Since Lithuania declared independence on March 11, 1990, it kept strong democratic traditions.

Since 1990, more than 1, 500 foreign companies from 61 countries have invested a total of $ 338. 3 million in Mongolia.

Since then, it has undergone seven revisions, in 1990 ( London ), 1991 ( Nairobi ), 1992 ( Copenhagen ), 1993 ( Bangkok ), 1995 ( Vienna ), 1997 ( Montreal ), and 1999 ( Beijing ).

Since 1990 two variants of this song have been heard-adapted for both her successors ; replacing ' Major ' for ' Maggie ' during the tenure of John Major and ' Tony ' for ' Maggie ' since Tony Blair's plan for the Iraq War in 2003.

Since Independence in 1990, Namibia has seen a dramatic growth in radio stations, with both commercial ( for instance Radio 99, Radio Wave, Radio Energy, Omulunga Radio, West Coast FM, etc.

Since 1990 the mission of the EPS has been to ensure the security of the national borders and to deal with internal disturbances.

Since 1990, the NTSB has maintained a Most Wanted List of Transportation Safety Improvements, in which it highlights those recommendations that would provide the most significant — and sometimes immediate — benefit to the traveling public.

Since regaining independence, Estonia has pursued a foreign policy of close cooperation with Western European nations.

Since January 2006, the NATO International Security Assistance Force undertook combat duties from Operation Enduring Freedom in southern Afghanistan, the NATO force chiefly made up of British, Canadian and Dutch forces ( and some smaller contributions from Denmark, Romania and Estonia and air support from Norway as well as air and artillery support from the U. S .) ( see the article Coalition combat operations in Afghanistan in 2006 ).

Since March 29, 2009 the airport is officially known as Lennart Meri Tallinn International Airport, in honour of the leader of the Estonian independence movement and second President of Estonia Lennart Meri.

Since Estonia regained its independence in 1991, the old town centre is being renovated.

Since the Northern Crusades Estonia became a battleground for centuries where Denmark, Germany, Russia, Sweden and Poland fought their many wars over controlling the important geographical position of the country as a gateway between East and West.

Since the debates about whether the future independent Estonia would be established as a new republic or a continuation of the first republic were not yet complete by the time of the August coup, while the members of the Supreme Soviet generally agreed that independence should be declared rapidly, a compromise was hatched between the two main sides: instead of " declaring " independence, which would imply a new start, or explicitly asserting continuity, the declaration would " confirm " Estonia as a state independent of the Soviet Union, and willing to reestablish diplomatic relations of its own accord.

Since fully regaining independence Estonia has had 12 governments with 8 prime ministers: Mart Laar, Andres Tarand, Tiit Vähi, Mart Siimann, Siim Kallas, Juhan Parts, and Andrus Ansip.

Since the last Russian troops left in 1994, Estonia has been free to promote economic and political ties with Western Europe.

Since 1992, Estonia has naturalized some 137, 000 residents of undefined citizenship, mainly ethnic Russians.

Since the Bulldog had started life as private venture rather than an Air Ministry-sponsored prototype it could be sold to other countries, and Bulldogs were exported to, among others, Denmark, Estonia, Finland, and Australia.

Since 1989, many elderly Baltic Germans, or their descendants, have taken holidays to Estonia and Latvia to look for traces of their own past, their ancestral homes, and their family histories.

Since 1991, the island has been a part of independent Estonia.

Since Estonia became independent in 1918, the University of Tartu has been an Estonian-language institution since 1919.

Since 1934, June 23 is also national Victory Day of Estonia and both 23rd and 24th are holidays and flag days.

Since its establishment, more member states have joined through a series of accession treaties, from the UK, Ireland, Denmark and Norway in 1972 ( though Norway did not end up joining ), Greece in 1979, Spain and Portugal 1985, Austria, Finland, Norway and Sweden in 1994 ( though again Norway failed to join, because of lack of support in the referendum ), the Czech Republic, Cyprus, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia and Slovenia in 2004, and Romania and Bulgaria in 2007.

Since 2009 there are total of 226 municipalities in Estonia, 34 of them are urban and 193 are rural.

Since 2002 all bachelor's ( honours ) degrees have been three-year courses in Estonia ( 4 years if students enrolled before 2001 ).

Since Bolshevik power in Estonia was relatively weak, the Council of Elders of the Maapäev declared on, that the assembly was the only legally elected and constituted authority in Estonia.

Since the book does not mention Estonia being sold to the Livonian Order, which happened September 29, 1346, it must be written before this date or shortly after.

Since 2004, Estonia is a full member of both the European Union and NATO.

Since 2004, KTU have performed in Finland, Russia, Norway, Denmark, Estonia, Portugal, Spain, Germany, Austria, Slovenia, Slovakia, USA, Canada, Mexico and Japan.

Since 2000, Ruoho has played numerous musical performances in Finland, Sweden, Norway, Netherlands, Belgium, Italy, Germany, France, Spain, Ireland, England, Austria, Poland, Russia, Latvia, Estonia, Bulgaria, Hungary, Lithuania and Ukraine.