The online version of Artificial Intelligence in Behavioral and Mental Health Care by David D. Luxton on ScienceDirect.com, the world's leading platform for high quality peer-reviewed full-text books.
The Constitution was written and signed in 1787. It was a charter of government that came to be ratified by the states, and it continues to be the supreme law of the land. Both documents have played an important role in American history and the spread of democratic ideals around the world.
See History of writing ancient numbers for how the writing of numbers began. It is generally agreed that true writing of language (not only numbers) was invented independently in at least two places: Mesopotamia (specifically, ancient Sumer) around 3200 BC and Mesoamerica around 600 BC. Several Mesoamerican scripts are known, the oldest being from the Olmec or Zapotec of Mexico.