Pewter (such as cups, plates, or jewelry) due to health concerns stemming from the lead content. Modern pewters are available that are completely free of lead, although many pewters containing lead are still being produced for other purposes. A typical European casting alloy contains 94% tin, 1% copper, and 5% antimony. A European pewter sheet would contain 92% tin, 2% copper, and 6% antimony. Asian pewter, produced mostly in Malaysia, Singapore, and Thailand, contains a higher percentage of tin, usually 97.5% tin, 1% copper, and 1.5% antimony. This makes the alloy slightly softer. So-called "Mexican pewter" is an alloy of aluminum,
What Is to Be Done? (novel) based on his own ideas of moral responsibility. Vladimir Lenin, however, found it inspiring and named a 1902 pamphlet "What Is To Be Done?". Lenin is said to have read the book five times in one summer, and according to Professor Emeritus of Slavic and Comparative Literature at Stanford, Joseph Frank, 'Chernyshevsky's novel, far more than Marx's "Capital", supplied the emotional dynamic that eventually went to make the Russian Revolution.' The novel mentions (in the 4th dream of Vera Pavlovna) aluminium as the "metal of the future". In fact aluminium became widely used only starting with World War I (1914).