This post have links about life and great work of Shri Tulasidas Ji. Short Biography https://sites.google.com/site/goswamitulsidasji/home http://en.wikipedia.org/wiki/Tulsidas http://www.dharmakshetra.com/sages/Saints/tulasi%20das%20goswami.html Work http://wikisource.org/wiki/%E0%A4%A4%E0%A5%81%E0%A4%B2%E0%A4%B8%E0%A5%80%E0%A4%A6%E0%A4%BE%E0%A4%B8 http://sanskritdocuments.org/hindi/tulasi/
Look at the page no 24 for Siddham Script in Japan and its resemblance with Devnagari script. http://www.hindueducation.org/resources/HinduInfluenceOnJapan.pdf Find more information and links at http://www.omniglot.com/writing/siddham.htm