Conceived in 1969, this work was first presented as a performance piece in 1993 at Dia Center for the Arts, with participants reading aloud dates going into the past and the future. A man and woman take turns reading a progressive series of dates, encompassing 1,000,000 years. During the time I read, we started at year 911,338 BC and got as far as we could in an hour. More information about On Kawara can be found here https://diaart.org/program/exhibitions-projects/on-kawara-one-thousand-days-one-million-years-chelsea-exhibition