11 May

1897 - A day after Emilio Aguinaldo had Katipunan Supremo Andres Bonifacio executed,  his forces lose the four pitched battles against the Spaniards, leading to the fall of several upland towns, such as Mendez, Nuñez, Alfonso, Maragondon, Bailen and Magallanes in Indang, Cavite during the Philippine Revolution; Apolinario Mabini, Aguinaldo's future prime minister, will write of how the tragedy of Bonifacio's murder-by-execution "smothered the enthusiasm for the revolutionary cause, and hastened the failure of the insurrection in Cavite, because many from Manila, Laguna and Batangas, who were fighting for the province (of Cavite), were demoralized and quit, and soon the so-called central government had to withdraw to the mountains of Biak-na-Bato in Bulacan."

1934 - A massive storm sends millions of tonnes of topsoil flying from across the parched Great Plains region of the United States as far east as New York, Boston and Atlanta; In the mid-1800s when it was first settled, the Great Plains used to be covered by prairie grass that was able to hold moisture and keep most of the soil from being blown away even during spells.

1952 - Former Police Chief Jose A. Remon Cantera, the government's candidate, wins in the presidential elections of Panama; the opposition has described Cantera as a "dangerous burlesque of democratic principles."

1998 - Indian stirs international controversy with its announcement that it has carried out a series of underground nuclear tests, experimental tests which took place without any warning to the international community; Pokhran in Rajasthan's northen desert state, located only about 93 miles from the border with Pakistan, which served as testing site, is described by Prime Minister Atal Behari Vajpayee as "contained explosions."