23 APRIL

1901- The poem "Un Heroe del Pueblo - Andres Bonifacio" which pays a lofty homage to the great hero and founder of the Philippine revolutionary movement Katipunan is penned and read by Filipino poet, essayist, writer, editor and lawyer Cecilio Apostol; the  poem read during the first commemoration of Supremo Andres Bonifacio's tragic execution, is published in the nationalistic newspaper El Renacimiento", along with Apostol's French translation of "Decalogue."

1895 - Japan is obliged to return the Liaodong peninsula to China in consideration of 30 million tael in indemnity under the Tripartite Intervention forged by Russia, Germany and France; the three powers expected generous repayment by China which, only six days earlier, was compelled to cede Taiwan, Pescadores, and the Liaodong peninsula  to Japan under the Treaty of Shimonoseki following their loss in the Sino-Japanese War.

1984 - American scientists discovers the AIDS virus, the fatal disease sweeping through and causing panic in America since it was first identified in 1981; earlier last week, French scientists discovered what would eventually be acknowledged the same virus that causes AIDS or Acquired Immune Deficiency Syndrome, which weakens the immune system, leaving its victims open to a series of wasting diseases.

1992 - The discovery of the primordial 'seeds' of the universe, based on the mapping of the cosmic microwave background radiation (CMB) recordings of NASA's Cosmic Background Explorer (COBE) satellite; the early universe is shown to have been lumpy and its highest-density areas eventually collapsed to form the universe's large-scale structures, including glaxies and cluster galaxies.