Hahnemann was a German physician who created the form of alternative medicine known as homeopathy. Unsatisfied with the state of medicine at the time, Hahnemann looked for an alternative. Struck by the similarity of the symptoms quinine produces in healthy individuals to those of the disorder it cures, he theorized that “like cures like” and that drugs which produce the same symptoms as certain diseases should be used in small doses to treat those diseases. Why did he discourage drinking coffee? Discuss
Source: The Free Dictionary
April 10 is the day on which 
Messolonghi was a major stronghold of Greek insurgents in the Greek War of Independence. Its inhabitants successfully resisted a siege by forces of the Ottoman Empire in 1822 and 1823 and held out heroically against a second siege from 1825 to 1826, when the Ottomans captured the town. Facing starvation after a year of relentless attacks, the people of Messolonghi—approximately 10,500—finally decided to leave the beleaguered city on the night of April 10, 1826. What happened when they left? 
The ginkgo is a tall and slender picturesque deciduous tree with fan-shaped leaves. A “living fossil,” the ginkgo is the only remaining species of a large order of gymnosperms that existed in the Triassic period; its form has not changed in millions of years. A combination of amazing disease resistance, insect-resistant wood, and the ability to form aerial roots and sprouts helps ginkgoes live more than 2,000 years. Where does the name “ginkgo biloba” come from? 
Paul Robeson was an American stage actor, singer, and political activist. The son of a runaway slave who became a minister, Robeson graduated from Rutgers, where he was an All-American football player, and then from Columbia University law school, before turning to theater. Known for his superb bass-baritone, he gained fame for his stage role in Othello. He later became an outspoken activist on issues such as racial justice and international peace. Why was his passport revoked in 1950? 
The 
Henry was knighted by Richard II in 1399 and created prince of Wales when his father, Henry IV, usurped the throne the same year. Although his early recklessness was celebrated—and probably exaggerated—by Shakespeare, Henry became a great popular hero. He lifted England from the near anarchy of his father’s reign to civil order and a high spirit of nationalism. His main interest, however, was in gaining control of lands in France—lands that he sincerely believed to be his right. Did he succeed? 
Tiger’s eye is a yellow-brown, semiprecious chatoyant gemstone consisting of quartz with parallel veins of silicified altered crocidolite. The gems are usually cut en cabochon, meaning with a convex, rounded surface that is polished but unfaceted, in order to best display their chatoyancy. Notable sources of tiger’s eye include the US, Canada, China, Brazil, Namibia, India and Burma. What is tiger iron?