. >> hinduism? >> no, hinduism existed already. >> islam? >> islam comes to the floor in the 600s, and as the islam spreads across iran and spreads down -- crash -- into china into central asia, into middle east, into europe, islam has a common language of scholarship which is arabic, and now they are spreading knowledge of sugar anywhere anyone speaks arabic. they can now learn how to use this new substance. one way they used the sugar was to make beautiful sculptures. these look like trees, but these were entirely built out of sugar. what they would do is have these big celebrations where a ruler to show what a wonderful powerful generous ruler he was would commission these huge sculptures made out of sugar, and have you had marzipan? it's a mixture of sugar and almonds, and they would make sheas sculptures out of the mixture of sugar and almonds. what do we call numbers that we write? 0, 1, 2, 3 -- the way we write them. what do we tall that kind -- what do we call that kind of number? >> accounting numbers. >> or there's another name for

. >> hinduism? >> no, hinduism existed already. uh -- >> islam? >> islam. islam comes to the fore in the 600s, and as the islam spreads across iran and spreads down -- crash. into china, into russia, into central asia, into the middle east, into europe, islam has a common language of scholarship which is arabic. and now they are spreading knowledge of sugar everywhere anyone speaks arabic. they can now learn how to use this new substance. one way they used sugar is to make beautiful sculptures. these -- see these look like trees? these were entirely built out of sugar. so what they would do is they would have these big celebrations where a ruler to show what a wonderful, powerful, generous ruler he was would commission these huge sculptures that were made out of sugar, and sometimes there were also -- have any of you ever had mars pan? a mixture of sugar and almonds. and they would also make these sculptures out of the mixture of sugar and almonds. can you -- while arabic is spreading, spreading knowledge, anybody remember what we call numbers that we write

opponents accused the organizers of using the rally to try to convert local christians and others to hinduism. >>> the palestinian authority has asked the united nations to add the church of the nativity in bethlehem to its list of the world's most important cultural sites. the nearly 1,700-year-old church located at the traditional birthplace of jesus could become the first place in the palestinian territories to be included on the u.n.'s world heritage list. no other historic sites in the area has been added because the u.n. does not currently recognize an independent palestinian state. >>> on our calendar this week, monday is valentine's day, named for two st. valentines who were martyred in the 2nd and 3rd centuries. . valentine's day was not associated with romantic love until the middle ages when geoffrey chaucer and others popularized stories about st. valentine. also this week, buddhists will celebrate nirvana day on tuesday. it marks the death of the buddha at the age of 80, about 2,500 years ago. and on wednesday, some muslims will celebrate mawlid an nabi, or the birthday of the pr