Periodic table
Russian chemistry professor Dmitri Mendeleev and German chemist Julius Lothar Meyer independently published their periodic tables in 1869 and 1870, respectively. Mendeleev's table was his first published version; that of Meyer was an expanded version of his (Meyer's) table of 1864. They both constructed their tables by listing the elements in rows or columns in order of atomic weight and starting a new row or column when the characteristics of the elements began to repeat.
Food composition data
Food composition tables in the format known today were published towards the end of the 19th century although, some tables on the chemical composition of mineral waters were assembled by Morveau as early as 1780. In 1896, tables from the USA were published, incorporating nearly 2600 analyses of a wide range of foods including the main food groups, as well as some processed foods. Values for foods were presented as ‘refuse’, water, protein, fats, carbohydrates, ash, and ‘fuel value’.