Light

1. Sight

1.1. Brightness

1.2. Darkness

1.3. Visible light

2. Feelings

2.1. Hope

2.2. Joy

2.3. Excitement

2.4. Peace

2.5. Reflection

2.6. Relaxation

3. History

3.1. Pompeii

3.2. Great Fire of London

4. Sources

4.1. Artificial light

4.1.1. Candles

4.1.2. Bulbs

4.1.2.1. Thomas Eddison

4.1.3. Fireworks

4.2. Natural

4.2.1. Sun

4.2.1.1. Stars

4.2.1.2. Space

4.2.2. Rainbows

4.2.3. Fire

5. Celebrations

5.1. Christmas

5.2. Diwali

5.3. Fireworks Night

5.4. Hannukka

5.5. New Year's Eve