The Empire State Building will light up red and yellow today to mark the 60th anniversary of the Communist takeover of China. What’s next — Stalin’s birthday? Unfortunately, they missed the 130th anniversary of his birth last December 18. But next April 17 will be the 35th anniversary of the the Khmer Rouge takeover of Phnom Penh — surely that deserves to be celebrated too. Or maybe next February 18, the 605th anniversary of Tamerlane’s death — how about a pyramid of skulls atop the skyscraper?