Weather map map using his own system of symbols, thereby creating the world's first weather map. He used his map to prove that air circulated clockwise around areas of high pressure; he coined the term 'anticyclone' to describe the phenomenon. He was also instrumental in publishing the first weather map in a newspaper, for which he modified the pantograph (an instrument for copying drawings) to inscribe the map onto printing blocks. "The Times" began printing weather maps using these methods with data from the Meteorological Office. The introduction of country-wide weather maps required the existence of national telegraph networks so that data
Letter to My Daughter that, depending on your taste, qualifies as either homespun or hokey". For example, she uses what has been called her most famous statement, when speaking of Cuban artist Celia Cruz: "We are more alike than unalike". Although Angelou discounts the idea when he brings it up to her, Younge thinks "Letter" reads like an extended farewell; in her 500-word introduction she mentions death twice. "Letter" consists of 28 "short epistles", which includes a few poems and a commencement address, and is dedicated to "the daughter she never had". Angelou thanks several women on her dedication page, which is divided into