Maya glyphs
The majority of surviving examples of Maya writing are from the
Classic period (AD 250-900) although earlier inscriptions date to
the Late Preclassic (400 BC - AD 250). The origin of the script is
complex and far from clear.
Maya writing has been found on monumental sculpture, public
buildings, murals, pottery, portable objects (made of shell,
obsidian, bone, wood, jade and other stones) and screenfold books,
called codices. The inscriptions deal mainly with calendrical and
astronomical information, and historical events such as alliances,
wars, lineages and marriages.
The text was inscribed in blocks placed in horizontal and
vertical rows. One or more glyphs were set in each of these blocks.
The reading order within each block is generally from left to right
and top to bottom. Two columns were read together following the
same order. The text appears sometimes in single columns, in
L-shape or other arrangements (see, for example, the Yaxchilán
Lintels).
Maya hieroglyphs were first identified as a writing system
during the nineteenth century, when the bar-and-dot numerical
system was deciphered. In the 1950s it was discovered that the
script combined signs representing whole words with signs
representing syllables. Certain glyphs were recognized as naming
specific people and cities (known as Name Glyphs and Emblem Glyphs
respectively). There were major breakthroughs in decipherment in
the second half of the twentieth century and approximately 85% of
the glyphs can now be read.