c. 500 BCE - The yakhchal (meaning "ice pit" in Persian;) is an ancient Persian type of refrigerator. The structure was formed from a mortar resistant to heat transmission, in the shape of a dome. Snow and ice was stored beneath the ground, effectively allowing access to ice even in hot months and allowing for prolonged food preservation. Often a badgir was coupled with the yakhchal in order to slow the heat loss. Modern refrigerators are still called yakhchal in Persian.
1396 CE - Ice storage warehouses called "Dong-bing-go-tango (meaning "east ice storage warehouse" in Korean) and Seo-bing-go ("west ice storage warehouse") were built in Han-Yang (currently Seoul, Korea). The buildings housed ice that was collected from the frozen Han River in January (by lunar calendar). The warehouse was well-insulated, providing the royal families with ice into the summer months. These warehouses were closed in 1898 AD but the buildings are still intact in Seoul.
c.1850 - Michael Faraday makes a hypothesis that freezing substances increases their dielectric constant.
1851 - John Gorrie patented his mechanical refrigeration machine in the US to make ice to cool the air
1856 - James Harrison patented an ether liquid-vapour compression refrigeration system and developed the first practical ice-making and refrigeration room for use in the brewing and meat-packing industries of Geelong, Victoria, Australia.
2013 - Physicist Ulrich Schneider of the University of Munich in Germany reported to have achieved temperatures below absolute zero ("negative temperatures") in gases; the gas reportedly became hotter rather than colder.
2014 - Scientists in the CUORE collaboration at the Laboratori Nazionali del Gran Sasso in Italy cooled a copper vessel with a volume of one cubic meter to 0.006 kelvins (-273.144 °C; -459.659 °F) for 15 days, setting a record for the lowest temperature in the known universe over such a large contiguous volume
2015 - Experimental physicists at Massachusetts Institute of Technology (MIT) successfully cooled molecules in a gas of sodium potassium to a temperature of 500 nanokelvins, and it is expected to exhibit an exotic state of matter by cooling these molecules a bit further.
2017 - Cold Atom Laboratory (CAL), an experimental instrument being developed for launch to the International Space Station (ISS) in June. The instrument will create extremely cold conditions in the microgravity environment of the ISS leading to the formation of Bose Einstein Condensates that are a magnitude colder than those that are created in laboratories on Earth. In a space-based laboratory, up to 20 seconds interaction times and as low as 1 picokelvin ( K) temperatures are achievable, and it could lead to exploration of unknown quantum mechanical phenomena and test some of the most fundamental laws of physics. 
^William Cullen, Of the Cold Produced by Evaporating Fluids and of Some Other Means of Producing Cold,in Essays and Observations Physical and Literary Read Before a Society in Edinburgh and Published by Them, II, (Edinburgh 1756)