904
First, given the name Liubina, King Ludwig the Child - the last Karolinger- donates large estates within the territory of today's Leoben to the Count Aribo.
982
"Liubina" for an estate in the today's territory of Trofaiach mentioned.

1020, before
Founding of the nunnery Göss through the Aribones.
1173
First time the name Forum Liuben is mentioned and documented as the first settlement of today's Town.
1188
First time the name St.Jacob's Church is mentioned and documented.
1218
The Judge mentioned and documented "Judex de Leuben".
1260
Earthquake
1262, after
King Ottokar II of Bohemia transfers the town in the so called "Murschleife".
13th century, 2nd half
Leoben receives municipal rights.
1373
Duke Albrecht grants the "Püchslgeld", a toll.
1396
A Judge for Jews is designated.

1459
First mentioning of the Brewery Göss
1480
The suburb Waasen is set on fire at the Turkish Tower, the church "Maria am Waasen" burns.
1524, from
Beginning of the reformation.
1525
Niklas of Salm recruits troops in the region to challenge the "Esquire Rebellion".
1572
At the Assembly of Bruck, Leoben acknowledges the Augsburg Confession.
1613, from
Jesuit settlement and re -catholication, opening of college and grammar school, highlight of science and culture.

1660-1665
Jesuit Monastery Church St. Xaver opened.
1689
Foundation of the Kapuziner Monastery (abolition 1811)
1716
Last plague case
1718
Pillar of Plague constructed.
1782
Abolition of the Benedictine's Nunnery through Josef II.
1788
Reform of the community administration (The Gubernium installs a mayor and two councils).
1790
City theater of Leoben opens and becomes Austria's oldest active theatre.

1794
Earthquake, the serious damage of the "Mauttorturm" requires a total reconstruction, as a result the tower -roof receives a new form - like a mushroom (since then it is called Schwammerlturm).
1797
The pre- peace of Leoben: Napoleon negotiates with Austrian diplomats substantial territorial changes in Europe.
1783-1800
Bishop Franz Josef Alexander Engel of Wagrain resides over the Diocese Leoben in the Nunnery Göss.
1805
Town occupied by the French army.
1809
The retrieval of Austria's defeated troops after the battle of St. Michael, the civilian population of Leoben is harmed as well.
1811
The Jesuit Church is established as parish church.
1849
The "The Styrian Corporate School of Mining" (established 1840, as a result of an initiative of Archduke Johann in Vordernberg is transferred to Leoben).
1850
Foundation of the Chamber of Commerce and Industry. On June 14th, first free election of the mayor.
1854
Cholera epidemics

1860
Max Kober acquires the Göss Brewery and revolutionizes the brewery.
1861
Founding of Alpine Montan
1865
Founding of the Mining School.
1881
Founding of the Austrian Alpine Montan Company.
1884
Gas illumination and construction of the City Gas Company.

1887
Construction of the County Hospital.
1906
Electric illumination of the city.

1908-1910
Construction of the protestant Gustav Adolf Church. Main Building of the Montan University is opened.
1939
Incorporation of Donawitz and Göss.
1945
Leoben is occupied by the Red Army and then replaced by British troops.
1951
Franz Mayr-Melnhof establishes a Cartonboard Company in Göss.
1952
Foundation of the Austrian Foundry Institute.

1964
Close-down of Glance Coal Mining
1983
New construction of School of Economics
1984
Board plant in Leoben Hinterberg

1994
Partnership contract with the Chinese town of Xuzhou.
1997
Opening of the innovative Main- square.

1997
County Exhibition "made in styria"

1998
Exhibition "China - Unrevealed Treasures"

1999
Exhibition "Gods of the Himalayan"

2000
Exhibition " Peru - Lost Cultures"

2001
Exhibition "Egypt - Empire of the Pharaohs"

2002
Exhibition "Dschingis Khan"

2003
Exhibition "Geisha and Samurai"

2004
Exhibition "Fascination Vietnam"

2005
Exhibition "Mexiko"

2006
Exhibition "Die Welt des Orients"

2007
Exhibition "Gold & Jade"