As of the start of the 2008 season, the Mets single season strikeout leader is Tom Seaver who struckout 289 batters in 1971.
If by highest you mean loudest, it was Hitler that has the highest recorded voice in history.
Marilyn VosSavant has an IQ of 228, which is the highest recorded IQ in history.
A Strikeout
Joe DiMaggio
Eric freaking Roberts
The highest number of suicide recorded in history, according to my data on my own island, it is 2004. I don't know about the other countries, states or islands. I believe there are different answers in different places.
The highest recorded temperature in Swedish history was 38 degrees Celsius or 100. 4 degrees Fahrenheit. It was recorded twice, first in 1933 in town of Ultuna and then again in 1947 in Malilla.
they recorded history
Recorded history is history that has already happened and prehistory is history that is about to happen.
The most destructive volcano of known history is eruption of Tambora volcano in Indonesia in 1815. The death toll of 100,000 is the highest of all recorded volcano eruptions.
before recorded history
The Mayans recorded their history by carving it into wood, stone, by painting it on pots and in a codex.