Der, Die oder Das?

DER:
* Nouns referring to male persons, professions and nationalities
* Names of all seasons, months, days of the week and most times of the day
* Most nouns ending in -en

DIE
* Nouns referring to female persons (many professions and nationalities are formed from adding -in to the masculine noun)
* Most nouns ending in unstressed -e
* All nouns ending in -ei,-ie,-ik,-ion,-heit,-keit,-schaft,-tät,-ung

DAS
* Nouns referring to the young of animals and human beings
* Nouns with the diminutive suffixes -chen or -lein
* Most metals
* Infinitives used as nouns (das Tanzen, das Singen)
* Letters used as nouns