March 1869 or by the

The 1970 British Annapurna South Face expedition was a Himalayan climb that was the first to take a deliberately difficult route up the face of an 8,000-metre mountain. At the time that the expedition set out, in March 1970, the only 8000ers which had been ascended more than once were Everest, Cho Oyu and Nanga Parbat; only Everest and Nanga Parbat had been climbed by a route different from that used on the first ascent.

The Paraguayan Legion, was a military unit led by colonels Juan Francisco Decoud and Fernando Iturburu that was formed in Argentina during the Paraguayan War, consisting mainly of Paraguayan exiles and opponents of the Francisco Solano López regime. Due to mistrust between the allied Argentina and Brazil, the Legion never developed into a strong fighting unit, as Brazilians distrusted this unit created by Argentina, though its organization had already been foreseen in the Treaty of the Triple Alliance signed between them in 1865. The legion started fighting, under a Paraguayan flag, only late in the war, either in March 1869 or by the battle of Pikysyry in December 1868; the war had started in 1864.