1870: The land that now includes General Alvarado Partido came into the ownership of Fortunato de La Plaza.
1879: The area changes jurisdiction from Balcarce to General Pueyrredón.
1887: It was around this time the project to build Miramar was undertaken by Jose María Dupuy, Rómulo Otamendi (engineer) and Fortunato de la Plaza.
1888: Miramar was founded on 20 September.
1889: Construction began on the first church in Miramar.
1891: The Partido of General Alvarado was created on September 29, with Miramar as its capital.
1911: The Buenos Aires Great Southern Railway arrived in Miramar and the company later built a comfortable hotel and adjoining golf course in the town.
1920: The first aeroplane arrives in Miramar.
1927: The Buenos Aires Great Southern Railway began the construction of the Miramar golf course.
1930: The hotel Dormy House was built adjacent to the golf course by the Buenos Aires Great Southern Railway, and later a tunnel was built to provide access to the sea from the
