Extract all of the dates mentioned in this paragraph and list them using bullets in the format {Date} - {Description} 
 • January 2011 - This is when the Ghana Space Science and Technology Institute (GSSTI) was first established as a Centre under the School of Nuclear and Allied Sciences
• May 2012 - This is when the Ghana Space Science and Technology Institute (GSSTI) was launched
• August 2013 - This is when the Ghana Space Science and Technology Institute was upgraded to an Institute