1990 - 1999 Spanning Volumes 26 to 35, explore our archive of Parabola issues from the 90s. inquiry. Featuring articles on topics ranging from chaos theory and fractals to number theory, mathematical art, and cryptography. Year 1999 - Volume 35 Year 1998- Volume 34 Year 1997 - Volume 33 Year 1996 - Volume 32 Year 1995 - Volume 31 Year 1994 - Volume 30 Year 1993 - Volume 29 Year 1992 - Volume 28 Year 1991 - Volume 27 Year 1990 - Volume 26